Question

13/15 x 7/39 regra do cancelamento

Answer 1

Explicação passo-a-passo:

$= \frac{13}{5} \times \frac{7}{3 \times 13}$

$= \frac{13 \times 7}{15 \times 3 \times 13}$

$= \frac{7}{15 \times 3}$

$= \frac{7}{45}$