Question

Даю 60 баллов за номер 3

Answer 1

1/9 : 2/3 = 1/9 * 3/2 = 1/6
4/7 : 12/5 = 4/7 * 5/12 = 5/21
9/16 : 3/4 =9/16 * 4/3 = 3/4
10/21 :14/15 = 10/21 * 15/14 = 25/49