Question

2/5+[3/2-(-2/5+0,9)-2/5]

Answer 1

Resposta:

opaa, demorei mas terminei KAKAKAAK

creio que a resposta seja 1/10

Explicação passo-a-passo:

2/5+[3/2-(-2/5+0,9)-2/5]

2/5+[3/5-(-2/5 + 9/10) -2/5

2/5 + [3/5 - 1/2 - 2/5]

2/5 + [-3/10]

2/5 - 3/10

1/10