-1 3/5×3 1/3-(1-3/8)×(1/3-1)=

Question

-1 3/5×3 1/3-(1-3/8)×(1/3-1)=

Answer 1

1) 1 - 3/8 = 5/8
2) 1/3 - 1 = - 2/3
3) 5/8 • ( - 2/3 ) = - 5/12
4) - 1 3/5 • 3 1/3 = - 8/5 • 10/3 = - 16/3 = - 5 1/3
5) - 5 1/3 - ( - 5/12 ) = - 5 4/12 + 5/12 = - 4 16/12 + 5/12 = - 4 11/12
Ответ ( - 4 11/12 )