Which is bigger 9 out of 10 or 15 out of 16?

Answer 1

9/10 or 15/16

80 is a number into which both 10 and 16 will go evenly. So we can write

9/10 = 72/80

and

15/80 = 75/80

Since now the denominators are equal, we can just compare the numerators and find that 75 Greater Than 72. Hence 15/16 is Greater Than 9/10