Question

Помогите пожалуйста

Answer 1

1) 4 · 4/21 = 4/1 · 4/21 = 16/21

2) 6 · 7/18 = 6/1 · 7/18 = 1/1 · 7/3 = 7/3 = 2 1/3

3) 5/14 · 28 = 5/14 · 28/1 = 5/1 · 2/1 = 10/1 = 10

4)  5 3/5 · 3/7 = 28/5 · 3/7 = 4/5 · 3/1 = 12/5 = 2 2/5

5) 3/8 · 2 2/3 = 3/8 · 8/3 = 1/1 = 1

6) 2 2/15 · 1 9/16 = 32/15 · 25/16 = 2/3 · 5/1 = 10/3 = 3 1/3