Question

encontro o valor das expressoes numericas com numeros racionais 13,2 . 0,9 + 4/5 : 2/5=

Answer 1

$13.2 \times 0.9 + \frac{4}{5} \div \frac{2}{5} \\ \\ 11.88 + \frac{4}{5} \times \frac{5}{2} \\ \\ 11.88 + 2 \\ \\ 13.88$