Question

como resolver passo-a-passo: A= 4/7 + 3/10 + 900

Answer 1

Resposta:

$a = \frac{4}{7} + \frac{3}{10} + 900 \\ \\ a = \frac{4 \times 10 + 7 \times 3}{7 \times 10} + 900 \\ \\ a = \frac{40 + 21}{70} + 900 \\ \\ a = \frac{61}{70} + 900 = \\ \\ a = \frac{61}{70} + \frac{900}{1} \\ \\ a = \frac{61 \times 1 +70 \times 900}{70} \\ \\ a = \frac{61 + 63000}{70} \\ \\ a = \frac{63061}{70}$