Question

以下是简便计算的题目，（能简便计算就简便计算）还有两个解方程，所有的计算要有过程。

56×75%—46×3/4 8×75%—3÷3/4 8.5×0.75+7.5×75% 101×0.375—37.5% 3/5÷60%×（3/4+1/2） 5/8—5/6×（1/4+25%）（都要有过程） 解方程：X—15%X=8.5 10+15%X=17.5

Answer 1

56×75%—46×3/4=(56-46)*3/4=15/2
8×75%—3÷3/4=8*3/4-3*4/3=6-4=2
8.5×0.75+7.5×75% =(8.5+7.5)*0.75=12
101×0.375—37.5%=(101-1)*0.375=37.5
3/5÷60%×（3/4+1/2）=3/4+1/2=7/4
5/8—5/6×（1/4+25%）=5/8-5/6*1/2=5/24
解方程：X—15%X=8.5
==>>85%x=8.5
==>>x=10
10+15%X=17.5
==>>0.15x=7.5
==>>x=50

Answer 2

56×75%—46×3/4
=56×3/4-46×3/4
=3/4×(56-46)
=3/4×10
=7.5

8×75%—3÷3/4
=8×3/4-3×4/3
=6-4
=2

8.5×0.75+7.5×75%
=8.5×0.75+7.5×0.75
=0.75×(8.5+7.5)
=0.75×15
=11.25

101×0.375—37.5%
=101×0.375-0.375
=0.375×(101-1)
=0.375×100
=37.5

3/5÷60%×（3/4+1/2）
=3/5÷6/10×(3/4+2/4)
=3/5×5/3×5/4
=5/4

5/8—5/6×（1/4+25%）（都要有过程）
=5/8-5/6×(1/4+1/4)
=5/8-5/6×1/2
=5/4×(1/2-1/3)
=5/4×1/6
=5/24

解方程：
X—15%X=8.5
85%x=8.5
85x=850
x=10

10+15%X=17.5
15%x=7.5
15x=750
x=50

Answer 3

56×75%—46×3/4
=（56-46）X75%
=7.5
8×75%—3÷3/4
=6-4
=2
8.5×0.75+7.5×75%
=(8.5+7.5)X0.75
=12

101×0.375—37.5%
=(101-1)X0.375
=37.5
3/5÷60%×（3/4+1/2）
=1X1.25
=1.25

5/8—5/6×（1/4+25%）（都要有过程）
=5/8-5/12
=5/24
解方程：X—15%X=8.5
0.85X=8.5
X=10
10+15%X=17.5
0.15X=7.5
X=50