Let the number be x. According to the question,
( x - 1/2 ) x 1/2 = 1/8
On multiplying both sides by 2, we obtain
( x - 1/2 ) x 1/2 x 2 = 1/8 x 2
x - 1/2 = 1
On transposing 1/2 to R.H.S, we obtain
x = 1/4 + 1/2 = 1 + 2/4 = 3/4
Therefore, the number is 3/4