6/7X=2/9÷2/3
6/7x=1/3
x=1/3x7/6
x=7/18
X÷1/12=4/5
x=4/5x1/12
x=1/15
3/4X-1/5X=22/25
15/20x-4/20x=22/25
11/20x=22/25
x=22/25x20/11
x=40/25
x=8/5