Question

简便运算（要过程）

（2-1/3)÷(2/2-1/3)
(3/4-2/7+5/8)×56
5×5/6+5/6÷5
5/23÷11+10/11×5/23
(4/3+1/2)÷4/5

Answer 1

第一题:(2-1/3)÷(2/2-1/3)
=(2-1/3)*3/2
=2*(3/2)-(1/3)*(3/2)
=3-1/2
=5/2
第二题:(3/4-2/7+5/8)×56
=(3/4)*56-(2/7)*56+(5/8)*56
=42-16+35
=61
第三题:5×5/6+5/6÷5
=5×(5/6)+(5/6)*(1/5)
=(5/6)*(5+1/5)
=(5/6)*(26/5)
=13/3
第四题:5/23÷11+10/11×5/23
=(5/23)*(1/11)+(10/11)*(5/23)
=(5/23)*(1/11+10/11)
=(5/23)*1
=5/23
第五题:(4/3+1/2)÷4/5
=(4/3+1/2)*(5/4)
=(4/3)*(5/4)+(1/2)*(5/4)
=5/3+5/8
=40/24+15/24
=55/24

Answer 2

1. 5/3 / 2/3=2.5

2. (11/8-2/7)×56=61/56 ×56=61

3. 25/6+1/6=13/3

4. 5/253+50/253=55/253

5.11/6 / 4/5=55/24