Question

if a
$\frac{a}{3} = \frac{7}{4} the \: vale \: of \: a \: is$
​

Answer 1

a/3=7/4

cross multiply

4a=21

a=21/4

Answer 2

$\frac{a}{3} = \frac{7}{4}$

Now,Cross-multiplying (a×4) & (3×7),we get

$4a = 21 \\ a = \frac{21}{4}$