Question

помогите-10,11 и 12 плииииис фо​

Answer 1

Пошаговое объяснение:

№10

1) 15/28 - 11/36 = 135/252 - 77/252 = 58/252 = 29/126

2) 29/126 * 21/29 = 1/6 * 1/1 = 1/6

3) 6 6/7 : 16/21 = 48/7 * 21/16 = 3/1 * 3/1 = 9/1 = 9

4) 1/6 + 9 = 9 1/6

№11

1) 9 - 7 2/5 = 8 5/5 - 7 2/5 = 1 3/5

2) 1 3/5 : 4/15 = 8/5 * 15/4 = 2/1 * 3/1 = 6/1 = 6

3) 7/8 * 4/5 = 7/2 * 1/5 = 7/10

4) 7/10 + 6 = 6 7/10

№12

1) 2/3 * 7 = 14/3 = 4 2/3

2) 1/6 * 8 = 8/6 = 4/3 = 1 1/3

3) 4 2/3 + 1 1/3 = 5 3/3 = 6

4) 6 - 3/10 = 5 10/10 - 3/10 = 5 7/10