五年级英语分数练习题50题含答案解析

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五年级英语分数练习题50题含答案解析
1.Two children are sharing a pizza equally. What fraction of the pizza does each child get?
A.one-half
B.one-third
C.one-fourth
答案解析:A。

分数由分子和分母组成。

这里两个孩子平均分一个披萨,每人得到一半,用one-half 表示。

选项B one-third 是三分之一,不符合题意。

选项C one-fourth 是四分之一,也不符合。

2.A cake is cut into four equal pieces. What fraction represents one piece?
A.one-quarter
B.one-third
C.one-half
答案解析:A。

一个蛋糕切成四块,每一块用one-quarter 表示四分之一。

选项B one-third 是三分之一,不对。

选项C one-half 是二分之一,不符合。

3.Three apples are divided equally among six children. What fraction of an apple does each child get?
A.one-half
B.one-third
C.one-sixth
答案解析:C。

三个苹果平均分给六个孩子,每人得到三除以六等于六分之一,用one-sixth 表示。

选项 A one-half 是二分之一,错误。

选项B one-third 是三分之一,也不对。

4.Five books are shared equally among ten students. What fraction of
a book does each student get?
A.one-half
B.one-fifth
C.one-tenth
答案解析:C。

五本书平均分给十个学生,每人得到五除以十等于十分之一,用one-tenth 表示。

选项A one-half 是二分之一,不符合。

选项B one-fifth 是五分之一,错误。

5.A box contains eight pencils. If two pencils are taken out, what fraction of the pencils are left?
A.six-eighths
B.three-fourths
C.five-eighths
答案解析:A 和 B 和 C 都对。

拿走两支铅笔后还剩六支,六除以八可以用six-eighths 表示,化简后为three-fourths,四分之三,也可以说成five-eighths 八分之五是错误的表述,不符合剩下铅笔的数量。

6.Six balloons are divided equally among three children. What fraction of balloons does each child get?
A.one-half
B.two-thirds
C.one-third
答案解析:B。

六个气球平均分给三个孩子,每人得到六个除以三等于二,也就是每人得到两个气球,用two-thirds 表示三分之二是错误的。

每人得到两个气球占总数六个气球的三分之二,用two-thirds 表示。

选项A one-half 是二分之一,不符合。

选项C one-third 是三分之一,也不对。

7.Four oranges are shared equally among eight people. What fraction of an orange does each person get?
A.one-half
B.one-fourth
C.one-eighth
答案解析:C。

四个橘子平均分给八个人,每人得到四除以八等于八分之一,用one-eighth 表示。

选项 A one-half 是二分之一,不符合。

选项B one-fourth 是四分之一,错误。

8.A bag has ten marbles. If three marbles are removed, what fraction of the marbles are left?
A.seven-tenths
B.three-sevenths
C.four-fifths
答案解析:A。

十个弹珠拿走三个还剩七个,七除以十等于十分
之七,用seven-tenths 表示。

选项B three-sevenths 是七分之三,不符合。

选项C four-fifths 是五分之四,错误。

9.Seven cookies are divided equally among four children. What fraction of a cookie does each child get?
A.seven-fourths
B.seven-sixths
C.seven-tenths
D.seven-fourths
答案解析:D。

七个饼干平均分给四个孩子,每人得到七个除以四等于四分之七,用seven-fourths 表示。

选项B seven-sixths 是六分之七,不符合。

选项C seven-tenths 是十分之七,错误。

10.Eight stickers are shared equally among two children. What fraction of the stickers does each child get?
A.one-fourth
B.one-half
C.four-eighths
答案解析:B。

八个贴纸平均分给两个孩子,每人得到八个除以二等于四,也就是每人得到四张贴纸,四张贴纸占总数八张贴纸的二分之一,用one-half 表示。

选项A one-fourth 是四分之一,不符合。

选项C four-eighths 化简后是one-half,但直接说four-eighths 不是最简形式,不准确。

11.Tom has two apples. Jack has three apples. Tom has ______ of the
apples compared to Jack.
A.two thirds
B.two fifths
C.two quarters
D.one third
答案解析:D。

Tom 有两个苹果,Jack 有三个苹果,Tom 的苹果数是Jack 的三分之二,也就是one third。

A 选项two thirds 是三分之二,不符合。

B 选项two fifths 是五分之二,不符合。

C 选项two quarters 是二分之一,不符合。

12.There are ten pencils in box A and twenty pencils in box B. The number of pencils in box A is ______ of that in box B.
A.one half
B.one third
C.one fourth
D.one fifth
答案解析:C。

A 盒子有10 支铅笔,B 盒子有20 支铅笔,A 盒子的铅笔数是B 盒子的二分之一,也就是one fourth。

A 选项one half 是二分之一,不符合。

B 选项one third 是三分之一,不符合。

D 选项one fifth 是五分之一,不符合。

13.Sally has five books. Linda has eight books. Sally has ______ of the books compared to Linda.
A.five eighths
B.five sixths
C.five tenths
D.five ninths
答案解析:C。

Sally 有五本书,Linda 有八本书,Sally 的书是Linda 的八分之五,也就是five tenths。

A 选项five eighths 是八分之五,不符合。

B 选项five sixths 是六分之五,不符合。

D 选项five ninths 是九分之五,不符合。

14.There are twelve balls in bag A and eighteen balls in bag B. The number of balls in bag A is ______ of that in bag B.
A.one half
B.one third
C.two thirds
D.one fourth
答案解析:B。

A 袋子有12 个球,B 袋子有18 个球,A 袋子的球数是B 袋子的三分之二,也就是one third。

A 选项one half 是二分之一,不符合。

C 选项two thirds 是三分之二,不符合。

D 选项one fourth 是四分之一,不符合。

15.Mike has seven stickers. Tom has ten stickers. Mike has ______ of the stickers compared to Tom.
A.seven tenths
B.seven eighths
C.seven ninths
D.seven fifths
答案解析:A。

Mike 有七个贴纸,Tom 有十个贴纸,Mike 的贴纸数是Tom 的十分之七,也就是seven tenths。

B 选项seven eighths 是八分之七,不符合。

C 选项seven ninths 是九分之七,不符合。

D 选项seven fifths 是五分之七,不符合。

16.There are fifteen candies in box C and twenty candies in box D. The number of candies in box C is ______ of that in box D.
A.one half
B.three fourths
C.three fifths
D.one third
答案解析:C。

C 盒子有15 颗糖,D 盒子有20 颗糖,C 盒子的糖数是D 盒子的四分之三,也就是three fifths。

A 选项one half 是二分之一,不符合。

B 选项three fourths 是四分之三,不符合。

D 选项one third 是三分之一,不符合。

17.Lily has eight flowers. Lucy has twelve flowers. Lily has ______ of the flowers compared to Lucy.
A.two thirds
B.two fifths
C.two quarters
D.one third
答案解析:B。

Lily 有八朵花,Lucy 有十二朵花,Lily 的花数
是Lucy 的三分之二,也就是two fifths。

A 选项two thirds 是三分之二,不符合。

C 选项two quarters 是二分之一,不符合。

D 选项one third 是三分之一,不符合。

18.There are eighteen pencils in drawer A and twenty-four pencils in drawer B. The number of pencils in drawer A is ______ of that in drawer B.
A.three fourths
B.three fifths
C.three sixths
D.three sevenths
答案解析:B。

A 抽屉有18 支铅笔,B 抽屉有24 支铅笔,A 抽屉的铅笔数是 B 抽屉的四分之三,也就是three fifths。

A 选项three fourths 是四分之三,不符合
21.Two thirds of the students in our class ______ boys.
A.is
B.are
C.be
D.was
答案解析:B。

这句话的主语是“Two thirds of the students”,表示“三分之二的学生”,是复数概念,所以谓语动词用are。

22.One fourth of the cake ______ eaten by Tom.
A.is
C.be
D.were
答案解析:A。

主语是“One fourth of the cake”,表示“四分之一的蛋糕”,是不可数名词,所以谓语动词用is。

23.Three fifths of the water in the bottle ______ clean.
A.is
B.are
C.be
D.was
答案解析:A。

“Three fifths of the water”是不可数名词,所以谓语动词用is。

24.Four sevenths of the apples on the table ______ red.
A.is
B.are
C.be
D.were
答案解析:B。

“Four sevenths of the apples”是可数名词复数,所以谓语动词用are。

25.Two ninths of the books in the library ______ new.
A.is
B.are
D.was
答案解析:B。

“Two ninths of the books”是可数名词复数,所以谓语动词用are。

26.One sixth of the time ______ spent on reading.
A.is
B.are
C.be
D.were
答案解析:A。

“One sixth of the time”是不可数名词,所以谓语动词用is。

27.Three eighths of the people at the party ______ dancing.
A.is
B.are
C.be
D.was
答案解析:B。

“Three eighths of the people”是可数名词复数,所以谓语动词用are。

28.Five tenths of the money ______ mine.
A.is
B.are
C.be
答案解析:A。

“Five tenths of the money”是不可数名词,所以谓语动词用is。

29.Six elevenths of the work ______ done.
A.is
B.are
C.be
D.was
答案解析:A。

“Six elevenths of the work”是不可数名词,所以谓语动词用is。

30.Seven twelfths of the students in the school ______ from different cities.
A.is
B.are
C.be
D.was
答案解析:B。

“Seven twelfths of the students”是可数名词复数,所以谓语动词用are。

31.One fourth is equal to _____.
A.0.25
B.25%
C.2.5
答案解析:A 和B。

四分之一等于0.25,也等于25%。

把分数化成小数,用分子除以分母,1 除以4 等于0.25。

把分数化成百分数,先把分数化成小数,再把小数的小数点向右移动两位,加上百分号,所以四分之一等于0.25,0.25 化成百分数是25%。

32.What is 3/5 as a decimal?
A.0.3
B.0.5
C.0.6
D.0.8
答案解析:C。

把分数化成小数,用分子除以分母,3 除以5 等于0.6。

33.2/3 is approximately equal to what percentage?
A.66%
B.66.6%
C.66.7%
D.67%
答案解析:C。

把分数化成百分数,先把分数化成小数,2 除以3 约等于0.667,0.667 化成百分数是66.7%。

34.Which decimal is equivalent to 7/10?
A.0.7
B.0.07
D.70
答案解析:A。

把分数化成小数,用分子除以分母,7 除以10 等于0.7。

35.Convert 0.4 to a fraction.
A.2/5
B.4/10
C.4/5
D.40/100
答案解析:A。

0.4 化成分数,一位小数表示十分之几,0.4 就是4/10,约分后是2/5。

36.What is 40% as a fraction?
A.2/5
B.4/10
C.4/5
D.40/100
答案解析:A。

40%化成分数,先把百分数写成分母是100 的分数,即40/100,约分后是2/5。

37.Which fraction is equal to 0.8?
A.4/5
B.8/10
C.80/100
答案解析:A、B、C。

0.8 化成分数,一位小数表示十分之几,0.8 就是8/10,约分后是4/5,8/10 和80/100 约分后也都是4/5。

38.Convert 0.125 to a fraction.
A.1/8
B.125/1000
C.1/4
D.12.5/100
答案解析:A。

0.125 化成分数,三位小数表示千分之几,0.125 就是125/1000,约分后是1/8。

39.What is 62.5% as a fraction?
A.5/8
B.625/1000
C.62.5/100
D.125/200
答案解析:A。

62.5%化成分数,先把百分数写成分母是100 的分数,即62.5/100,分子分母同时扩大10 倍变成625/1000,约分后是5/8。

40.Which fraction is equivalent to 0.625?
A.5/8
B.625/1000
C.62.5/100
答案解析:A、B、D。

0.625 化成分数,三位小数表示千分之几,0.625 就是625/1000,约分后是5/8,125/200 约分后也是5/8。

41.Two-thirds of the students in our class are boys. What fraction of the students are girls?
A.One-third
B.Two-thirds
C.Three-fourths
D.One-fourth
答案解析:A。

我们班三分之二的学生是男生,那么女生的比例就是一减三分之二等于三分之一。

42.What is three-fourths divided by two-thirds?
A.Nine-eighths
B.Eight-ninths
C.Six-sevenths
D.Seven-sixths
答案解析:A。

四分之三除以三分之二等于四分之三乘以二分之三,等于八分之九。

43.If a cake is divided into eight equal parts and three parts are eaten, what fraction of the cake is left?
A.Five-eighths
B.Three-eighths
C.Six-eighths
D.Four-eighths
答案解析:A。

蛋糕分成八份,吃了三份,还剩八份减三份等于五份,所以剩下八分之五。

44.What is the sum of one-half and one-third?
A.Five-sixths
B.Two-fifths
C.Three-fourths
D.Four-fifths
答案解析:A。

二分之一加三分之一,通分后为六分之三加六分之二等于六分之五。

45.If one-fifth of a number is 4, what is the number?
A.20
B.15
C.25
D.30
答案解析:A。

设这个数为x,五分之一x 等于4,那么x 等于4 乘以5 等于20。

46.What fraction is equal to 0.6?
A.Three-fifths
B.Four-fifths
C.Two-thirds
答案解析:A。

0.6 等于十分之六,化简后为五分之三。

47.Two-fifths of 30 is what number?
A.12
B.15
C.18
D.24
答案解析:A。

30 的五分之二等于30 乘以五分之二等于12。

48.What is three-fourths of 48?
A.36
B.42
C.32
D.40
答案解析:A。

48 的四分之三等于48 乘以四分之三等于36。

49.If a ribbon is 2 meters long and one-half of it is cut off, how long is the remaining part?
A.1 meter
B.1.5 meters
C.0.5 meter
D.2.5 meters
答案解析:A。

两米的一半是一米,所以剩下的部分是1 米。

50.What is the reciprocal of two-thirds?
B.Three-seconds
C.Three-thirds
D.Three-fourths
答案解析:A。

三分之二的倒数是二分之三,也就是three-halves。

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