There are an infinite number of fractions. 8/16 (=1/2) or 8/17, 8/18 (=4/9), ... for example.
15/8 the fraction for 1 7 over 8 = 1 7/8 or 15/8
8 and 7 over 15. 7 8 _ 15
8 ÷ 15 = 8 over 15.
14/15 is greater
15/8
2 over 15
4/15 = 8/30
5 over 8 as a fraction plus 7 over 12 = 15/24
15/8 ÷ 25/9 = 27/40
5/8 is greater.
15 / 40 = 3 / 8
15/40 = 3/8