分数加减法混合运算简算

分数减加法混合运算简算

10题一组

5/2 -（3/2 + 4/5）=1/5

7/8 +（1/8 + 1/9）=10/9

9/10-1/5-1/2=1/5

3/4-1/6-1/3=1/4

1/3 + 3/4 + 1/5=77/60

3/10+1/4+2/5=19/20

5/6 + 1/12 + 3/4=5/3

30/46 - 1/2 + 7/23=21/46

8/11 + 1/6 + 7/33=73/66

19/8 - 1/2 - 3/4=9/8

3/7×49/9 - 4/3 =1

8/9×15/36 + 1/27=11/27

12×5/6–2/9×3 =28/3

8×5/4 + 1/4 =41/4

6÷3/8–3/8÷6 =255/16

4/7×5/9 + 3/7×5/9 =5/9

5/2 -（3/2 - 1/3） =4/3

7/8 -（1/8 + 1/9） =23/36

9×5/6 + 5/6 =25/3

3/4×8/9 - 1/3 =1/3

6×（1/2 + 2/3） =5

8×4/5 + 8×11/5 =24

31×5/6–5/6 =25

7/8 +（1/8 - 1/9）=8/9

101×1/5–1/5×21 =16 45 ×2/3 + 1/3×45=45 5/6-4/9 +1/6-2/9=1/3

5/6-3/10+1/6-7/10=0

3/4-2/9 +1/4=7/9

5/8+1/8-3/10-1/10=7/20

1/2+2/3-3/4=5/12

17/19×12 + 2/19×12=12 1/7×5/8 + 3/7×5/8=5/14 8×3/4 + 1/3=19/3

5/2 -（3/2 + 4/ 7）=11/7 1-1/3+2/7=20/21

7/19 ×5/6+ 12/19×5/6 = 1/2+4/5-3/10=1

4/7+1/6-4/7=1/6

56×（1/7+1/8）=15

7/8-(1/8+3/4)=0

7/9-(1/9+1/3)=1/3

1/4+(2/5+3/4)=7/5

5/6-(2/3-1/9)=5/18

9/10-(3/4+1/8)=1/40

1-(3/4-2/9)=17/36

7/8-(2/3+1/6)=1/24

1-(1/3+3/5)=1/15

5/7-(4/7+1/9)=2/63

1-1/4-2/5=7/20

注：人工计算，答案请再次核实