Determine the LCM of 15 and 8 to be 8*15 = 120.

Rename both fractions using 120 as a denominator.

7/8 = (7*15)/(8*15) = 105/120

13/15 = (13*8)/(15*8) = 104/120

You can now determine that 7/8 is the larger fraction.

Rename both fractions using 120 as a denominator.

7/8 = (7*15)/(8*15) = 105/120

13/15 = (13*8)/(15*8) = 104/120

You can now determine that 7/8 is the larger fraction.