Question

a)(+2/5)+(-1/3)=
b)(+3/5)+(-1/3)+(-2/5)=
c)(+0,1)+(-1,1)+(+0,11)=
me ajudem pfvr obrigada.​

Answer 1

Resposta:

a) $\frac{2}{5} - \frac{1}{3} = \frac{6-5}{15} = \frac{1}{15}$

b) $\frac{3}{5} - \frac{1}{3} - \frac{2}{5}= \frac{9-5-6}{15}=\frac{-2}{15}$

c)

$0,1 - 1,1 + 0,11 = - 0,89\\ou\\\frac{1}{10}-\frac{11}{10}+\frac{11}{100}= \frac{-10}{10} + \frac{11}{100}=\frac{-100+11}{100}=\frac{-89}{100}$