Question

1\10+25 9\10+62 24\77-49 21\22+1 1\2*16 2\7:3
даю 20 баллов

Answer 1

1/10 + 25 9/10 + 62 24/77 - 49 21/22 + 1 1/2 · 16 2/7 : 3 = 46 1/2

1) 1 1/2 · 16 2/7 = 3/2 · 114/7 = (3·57)/(1·7) = 171/7

2) 171/7 : 3 = 171/7 · 1/3 = (57·1)/(7·1) = 57/7 = 8 1/7

3) 1/10 + 25 9/10 = 25 10/10 = 26

4) 26 + 62 24/77 = 88 24/77

5) 88 24/77 - 49 21/22 = 88 48/154 - 49 147/154 = 87 202/154 - 49 147/154 = 38 55/154 = 38 5/14

6) 38 5/14 + 8 1/7 = 38 5/14 + 8 2/14 = 46 7/14 = 46 1/2

Ответ: 46 целых 1/2.