Question

ajudem pfv tenho q levar isso hj e nao congui responder​ 49 pontos pra quem responder bota o cálculo

Answer 1

Resposta:

a) $\frac{71}{30}$

b) $\frac{1}{5}$

c) $\frac{37}{30}$

Explicação passo a passo:

$\frac{3}{2}+\frac{1}{5}+\frac{2}{3}$

$=\frac{45}{30}+\frac{6}{30}+\frac{20}{30}$

$=\frac{45+6+20}{30}$

$=\frac{71}{30}$

$\frac{7}{10}-\frac{1}{2}$

$=\frac{7}{10}-\frac{5}{10}$

$=\frac{7-5}{10}$

$=\frac{2}{10}$

$=\frac{1}{5}$

$\frac{3}{5}\cdot \frac{2}{3}+\frac{5}{6}$

$=\frac{2}{5}+\frac{5}{6}$

$=\frac{12}{30}+\frac{25}{30}$

$=\frac{12+25}{30}$

$=\frac{37}{30}$