по математике 41 42 ппомогитенадо

1/2 × 3 = 3/2 = 1 1/2

5/6 × 12 = 60/6 = 10

11/24 × 4 = 44/24 = 1 20/24 = 1 5/6

3/15 × 8 = 24/15 = 1 9/15 = 1 3/5

14/15 × 3 = 42/15 = 2 12/15

6/21 × 7 = 42/21 = 2

5/14 × 16 = 80/14 = 5 10/14 = 5 5/7

7/18 × 6 = 42/18 = 2 16/18 = 2 8/9

12 : 1/2 = 24

15 : 1/3 = 45

35 : 1/5 = 175

320 : 1/8 = 2560

480 : 1/6 = 2880

144 : 1/12 = 1728

9 : 1/2 = 18

17 : 1/4 = 68

21 : 1/5 = 105