Question

1 1/8÷2 1/4+2 1/2×(-2/5)

Answer 1

Ответ:

-1/2

Пошаговое объяснение:

1) 1. 1/8 : 2. 1/4 = 9/8 : 9/4 = 9/8 * 4/9 = 4/8 = 1/2

2) 2. 1/2 * (-2/5) = 5/2 * (-2/5) = -1

3) 1/2 + (-1) = 1/2 - 1 = 1/2 - 2/2 = -1/2

Answer 2

Пошаговое объяснение:

1 1/8:2 1/4+2 1/2×(-2/5)=

=9/8:9/4+5/2×(-2/5)=

=9/8×4/9-1=1/2-1= - 1/2= - 0,5