Question

1 21/2 + 5 2/5 calculo e resposta

Answer 1

Resposta:

Explicação passo-a-passo:

$1 . \frac{21}{2}  +  5 . \frac{2}{5} \\\\\frac{1}{1} . \frac{21}{2}  + \frac{5}{1} . \frac{2}{5} \\\\\frac{1.21}{1.2} + \frac{5.2}{1.5} \\\\\frac{21}{2} + \frac{10}{5}$

Faremos o MMC dos denominadores :

2, 5 / 10

$\frac{21}{2} + \frac{10}{5} = \frac{105+20}{10} = \frac{125}{10} = \frac{25}{2}$