Question

6500 menos sete treze avos?

Answer 1

$\bullet \ 6500 - \frac{7}{13} = \frac{84500 - 7}{13} \rightarrow \text{fazendo MMC} \\\\ \frac{84500 - 7}{13} = \boxed{\frac{84493}{13}}$

Answer 2

$6500-\frac{7}{13}= \\ \\ \frac{13.6500-7}{13}= \\ \\ \frac{84500-7}{13}= \\ \\ \frac{84493}{13}$