Question

Express the following as improper fraction:

$7\frac{3}{4}$

Answer 1

Suppose we have a mixed fraction as $\text{Whole number}\frac{\text{Numerator}}{\text{Denominator}}$,
then its improper fraction is $\frac{\text{Whole number}\times \text{Denominator + Numerator}}{\text{Denominator}}$ .

For $7\frac{3}{4}$, on substituting the values we get:

$7\frac{3}{4}=\frac{(7\times 4)+3}{4}=\frac{28+3}{4}=\frac{31}{4}$