Ответ:

3/2; -6/5; -7/5; -23/10; 19/10; 25/4

Пошаговое объяснение:

1)

-7 1/2=-15/2

-15/2÷(-5)=3/2

2)

-8 2/5=-42/5

-42/5÷7=-6/5

3)

-11 1/5=-56/5

-56/5÷8=-7/5

4)

13 4/5 = 69/5

69/5 ÷ -6 = - 23/5 × 1/2 = -23/10

5)

-7 3/5 = -38/5

-38/5 ÷ -4 = 19/5 × 1/2 = 19/10

6)

-18 3/4 = -75/4

-75/4 ÷ -3 = 25/4