Question

find the equivalent fraction of 3/5 having numerator 18​

Answer 1

$3 \times 6 = 18 \\ so \: if \: we \: multiply \: both \: numerator \: and \: denominator \: by \: 6 \: we \: will \: get \: the \: required \: \\equivalent \: fraction \: with \: numerator \: 18 \\ \frac{3 \times 6}{5 \times 6} = \frac{18}{30}$