Question

If you subtract 1/2 from a number and multiply the result by 1/2,you get 1/8. what is the number?

Answer 1

Let the no be z
so, (x-1/2)×1/2=1/8
x-1/2=1/8×2
x-1/2=1/4
x=1/4+1/2
x=3/4

Answer 2

Let that number = x

(x-1/2)×1/2 = 1/8
(x-1/2) = 1/8×2
(x-1/2) = 1/4
x-1/2 = 1/4
x = 1/4 + 1/2
x = 2+4/8 ( cross multiplication )
x = 6/8
x = 3/4