Question

Помогите пожалуйста, даю 100 баллов

Answer 1

Пошаговое объяснение:

4) 32,5 * 10 = 325

5) 4,5 * 0,1 = 0,45

6) 2 11/15 + 2 7/20 = 2 44/60 + 2 21/60 = 4 65/60 = 5 5/60 = 5 1/12

7) 4 1/7 - 2 1/4 = 4 4/28 - 2 7/28 = 3 32/28 - 2 7/28 = 1 25/28

8) 6 - 3 8/19 = 5 19/19 - 3 8/19 = 2 11/19

9) 1 1/27 : 7 7/9 = 28/27 : 70/9 = 28/27 * 9/70 = 2/3 * 1/5 = 2/15

10) 325,1 - 81,47 = 243,63

11) 5 3/8 = (5*8 + 3)/8 = (40+3)/8 = 43/8 = 43 : 8 = 5,375