Question

$9$ subtract from a number gives $\frac{21}{5}$. Find the number.

Answer 1

suppose any number$=x$

$x-9=\frac{21}{5}$

$x=\frac{21}{5}+9$

$=\frac{21+9\times 5}{5}$

$=\frac{21+45}{5}$

$x=\frac{66}{5}$

hence the number is $\frac{66}{5}$