Question

de o valor da expressão:0,2-[1/3+(-5/3+1)]=?

Answer 1

$0,2-[\frac{1}{3}+(-\frac{5}{3}+1)]=\\ \\ \frac{1}{5}-[\frac{1}{3}+(-\frac{5}{3}+1)]=\\ \\ \frac{1}{5}-[\frac{1}{3}+(-\frac{2}{3})]=\\ \\ \frac{1}{5}-[-\frac{1}{3}]=\\ \\ \frac{1}{5}+\frac{1}{3}=\frac{8}{15}$

Answer 2

0,2 - [ 1/3 + ( - 5/3 + 1 ) ] =
1/5 - [ 1/3 + ( - 2/3 ) ] =
1/5 - [ - 1/3 ] =
1/5 + 1/3 =
3/15 + 5/15 = 8/15

Tenha ótimos estudos !!!