Question

Questão 09: O quociente de - 17/18
(-34/21) é igual a:
a) 7/12
b) 7/8
c) - 7/10
d) - 2/7​

Answer 1

$\sf{ - \frac{17}{18} \div ( - \frac{34}{21}) } \\ \\ \sf{ \frac{17}{18} \div \frac{34}{21} } \\ \\ \sf{ \frac{\cancel{17}}{18} \times \frac{21}{\cancel{34}} } \\ \\ \sf{ \frac{1}{\cancel{18}} \times \frac{\cancel{21}}{2} } \\ \\ \sf{ \frac{1}{6} \times \frac{7}{2} } \\ \\ \sf{ \frac{1 \times 7}{6 \times 2} } \\ \\ \boxed{ \sf{ \frac{7}{12} }}$

r: item (a)

$\mathcal{ATT : ARMANDO}$