Question

4. Which common number should be added to or subtracted from 17/24 to make it 1/2 ?

Answer 1

Let x be the common no.
Then,
17/24+x=1/2
x=1/2-17/24
x=-5/24

Case 2
17/24-x=1/2
x=17/24-1/2
x=5/24
Therefore answer is + or - 5/24