1/6X÷1/8=8/9 X-40%X=2/5 X-5/12=5/42÷5/28

问题描述:

1/6X÷1/8=8/9 X-40%X=2/5 X-5/12=5/42÷5/28

1/6X÷1/8=8/9
4/3x=8/9
x=2/3
X-40%X=2/5
3/5x=2/5
x=2/3
X-5/12=5/42÷5/28
x-5/12=2/3
x=8/12-5/12
x=1/4