小学数学 分数转换成百分比 Fraction into Percentage 英语双语练习题

Worksheet on Fraction into
Percentage
分数转换为百分比的练习题（附答案）
In this worksheet, we can see about Percentages and how to convert fractions into percentages. Here, the Percent refers to per hundred. A percent can be represented as a decimal and fraction, which will be a number between zero and one. We can represent it using the percentage formula which is defined as a number that can be represented as a fraction of 100. If we want to turn a percentage into a decimal, we can just divide by 100. In the below sections, we can see how we can convert a fraction into a percentage.
在这个练习题中，我们可以了解有关百分比以及如何将分数转换成百分比。

这里的百分比是指每百分之。

百分比可以用小数和分数表示，小数是介于0和1之间的数字。

我们可以用百分数公式来表示它，百分数公式定义为一个数字，可以用100的分数来表示。

如果我们想把一个百分数变成一个小数，我们可以除以100。

在下面的几节中，我们可以看到如何把一个分数变成一个百分数。

To convert a fraction into a percentage, we will divide the numerator of the fraction by the denominator of the fraction, and then we will multiply the result by 100. Then we will get the
result as a percent. Here, below we can see the solved examples.
为了把一个分数转换成一个百分比，我们将分数的分子除以分数的分母，然后我们将结果乘以100，然后我们将得到一个百分比的结果。

在这里，下面我们可以看到解决的例子。

1. Express the following fractions as a percentage:
1.用百分比表示下列分数：
(i) 7/20 (ii) 6/25 (iii) 9/13
Solution: (i) 7/20 Here, we will divide the numerator of the fraction by the denominator of the fraction after that we will multiply the result
by 100. Then we will get the result. = (7/20 ×100) % = 35 %.
解：（i）7/20这里，我们将分数的分子除以分数的分母，然后将结果乘以100，得到结果(7/20 × 100) % = 35 %.
(ii) 6/25 Here, we will divide the numerator of the fraction by the denominator of the fraction after that we will multiply the result by 100. Then we will get the result. = (6/25 ×100) % = 24 %
（ii）6/25在这里，我们将分数的分子除以分数的分母，然后我们将结果乘以100，然后我们将得到结果(6/25 × 100) % = 24 %
(iii) 9/13 Here, we will divide the numerator of the fraction by the denominator of the fraction after that we will multiply the result by 100. Then we will get the result. = (9/13 × 100) % = 69.23 %
（iii）9/13在这里，我们将分数的分子除以分数的分母，然后我们将结果乘以100，然后我们将得到结果(9/13 × 100) % = 69.23 %
2. Convert 9/25 to percentage.
2.将9/25换算成百分比。

Solution: 9/25 To convert into a percentage, we will divide the numerator of the fraction by the denominator of the fraction after that we will multiply the result by 100. Then we will get the
result. = (9/25 ×100) % = 36 %
解：9/25要换算成一个百分比，我们将分数的分子除以分数的分母，然后将结果乘以100，得到结果(9/25 × 100) % = 36 %
3. Convert the following statements in the percentage:
3.请转换成百分比：
(i) 10 out of 25 people are sitting. (ii) 45 oranges in a box of 250 are bad.
（i）25个人中有10个坐着(ii) 一盒250个橘子，其中45个橘子是坏的。

Solution: (i) 10 out of 25 people are sitting.
解决方案：（i）25个人中有10个人坐着。

To convert into a percentage, we will divide the numerator of the fraction by the denominator of the fraction after that we will multiply the result by 100. Then we will get the result. = 10/25 people are sitting = (10/25 × 100) % people are sitting = 40 % people are sitting.
为了转换成一个百分比，我们将分数的分子除以分数的分母，然后我们将结果乘以100，得到结果10/25人坐着× 100%的人坐着=40%的人坐着。

(ii) 45 oranges in a box of 250 are bad.（ii）一盒橙子250个橙子中有45个是坏的。

To convert into a percentage, we will divide the numerator of the fraction by the denominator of the fraction after that we will multiply the result by 100. Then we will get the result. = 45/250 oranges are bad = (45/250 ×100) % oranges are bad = 18 % of oranges are bad.
为了转换成一个百分比，我们将分数的分子除以分数的分母，然后我们将结果乘以100，得到结果45/250橘子坏=（45/250）× 100%的橙子坏了=18%的橙子坏了。

4. Mike ate the 2/7th part of the pizza. How much percent did Mike eat?
4.迈克吃了披萨的七分之二。

迈克吃了多少？
Solution: Mike ate 2/7th part of the pizza, To find the percent how much did Mike eat, we will multiply the fraction with 100 2/7 ×100 On solving we will get approx 28%.
解：迈克吃了披萨的七分之二，为了计算迈克吃了多少披萨的百分比，我们将分数乘以100 2/7× 100解决我们将得到约28%。

5. The total number of students in a class is 45 and in that 27 are boys. What will be the total percentage of boys in the class?
5.一个班的学生总数是45人，其中27人是男生。

班上男生的总比例是多少？
Solution: The total number of students is 45 Of that 27 are boys So the percentage of boys in the class are 27/45 × 100 On solving we will get 60%.
解：学生总数为45人，其中27人是男生，所以班上男生的比例是27/45× 100解决我们将得到60%。