Решите а) -6 1/5: (3 2/5-1 1/3) б) -3 2/3*1 1/2-1 2/3*1 1/2 6 класс

A)
1) 3 2/5 - 1 1/3 = 3 6/15 - 1 5/15 = 2 1/15
2)  - 6 1/5 : 2 1/15 = - 31/5 : 31/15 = 3 
ОТВЕТ 3
Б) 
- 3 2/3 * 1 1/2 - 1 2/3 * 1 1/2 = 1 1/2 * ( - 3 2/3 - 1 2/3 ) = 1 1/2 * ( - 4 4/3 ) =
= 1 1/2 * ( - 5 1/3 ) = 3/2 * ( - 16/3 ) = - 8