X/3= 1/ 12

Multiply both sides of the equation by 3.

Then X/3 x 3 = 1x3/ 12.

X= 1/4。

1/X=5/7

Both sides count down at the same time.

Then X=7/5.

4X/ 12= 1/6

Simplify first

Then X/3= 1/6.

Multiply both sides by 3.

Then X= 1/2.

Return to the completed state