Question

If $\frac{9}{7}$ and $\frac{a}{63}$ are equivalent fractions, then the value of $a$ is ___ .

Answer 1

If $\frac{9}{7}$ and $\frac{a}{63}$ are equivalent fractions,then $9\times 63$ = $a\times 7$.

$⟹a=\frac{9\times 63}{7}$ = $81$