Question

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

• A. 18
• B. 81
• C. 31
• D. 60

Answer 1

The correct option is B

81

$\frac{9}{7}$ = $\frac{a}{63}$ are equivalent fractions,

Equivalent fractions are obtained when you divide or multiply both numerator and denominator with the same number

Here in the denominator, 7 $\times$ 9 = 63

Hence 9 ( numerator ) has to be multiplied by 9 to get $a$

Hence 9 $\times$ 9 = 81 = $a$