Question

"сравните дроби с числом 1,затем между собой 17/13 и 7/8, 8/7 и 8/9,78/77 и 77/78,89/90 и 90/89"

Answer 1

17/13>1 U 7/8<1⇒17/13>7/8
8/7>1 U 8/9<1⇒8/7>8/9
78/77>1 U 77/78<1⇒78/77>77/78
89/90<1 U 90/89>1⇒89/90<90/89