Question

Calculați fractia ")) ​

Answer 1

$( - \frac{9}{8} ) \times ( - \frac{4}{15} ) \times ( + \frac{10}{21} ) =$

$\frac{9 \times 4}{8 \times 15} \times \frac{10}{21} =$

$\frac{3}{2 \times 5} \times \frac{10}{21} =$

$= \frac{1}{1} \times \frac{1}{7}$

$= \frac{1}{7}$