Write three equivalent fractions for each fracton 7/8,5/6

in order to get the answer am I suppose to find the number that I can divid both numbers and is it the same number

Multiply the numerator and denominators of each fraction by the same number.

7/8 * 2/2 = 14/16
7/8 * 3/3 - 21/24
7/8 * 4/4 = 28/32