Как сравнить 5/14 и 8/21 31/88 и 112/80

Question

Как сравнить 5/14 и 8/21 31/88 и 112/80

Answer 1

5/14 = 15/42,  8/21 = 16/42,

5/14 < 8/21,

31/88 = 310/880,   112/80 = 1232/880,

31/88 < 112/80