1) (13/24)*6=13/4=3 1/4

2) (9/39)*(13/18)=1/(3*2)=1/6

3) (1 3/5):(2 2/15)=(8/3)*(15/32)=5/4=1 1/4

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

5) (7/17):21=1!/51

6) (9/35):(3/10)=(9/35)*(10/3)=3*2/7=6/7

Ответ:

Пошаговое объяснение:

А)

13/24 * 6 = 13/4 * 1 = 13/4 =

3. 1/4

Б)

1. 2/5 * 1. 3/7 = 7/5 * 10/7 = 10/5 = 2

В)

9/39 * 13/18 = 1/3 * 1/2 = 1/6

Г)

7/17 : 21 = 7/17 * 1/21 = 1/17 * 1/3 = 1/51

Д)

1. 3/5 : 2. 2/15 = 8/5 : 32/15 = 8/5 * 15/32 = 1/1 * 3/4 = 3/4

Е)

9/35 : 3/10 = 9/35 * 10/3 = 3/7 * 2/1 = 6/7