15 1/2 is the same as 31/2 2 1/2 is the same as 5/2 31/2 divided by 5/2 (keep-change-flip to divide a fraction) —> 31/2 times 2/5 Numerator: 31 times 2 = 62 Denominator: 2 times 5 = 10 Put that together and it’s 62/10 which reduces to 31/5 or 6 1/5 cups