Question

21) Calcule as expressões:

Answer 1

Resposta:

$1\frac{4}{5} + \frac{7}{10}$

$= \frac{9}{5} + \frac{7}{10}$

$= \frac{18}{10} + \frac{7}{10}$

$= \frac{25}{10}$

$= \frac{5}{2}$

$= 2 \frac{1}{2}$

C

Explicação passo-a-passo:

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