Question

Express the following as improper fraction:$7\frac{3}{4}$
(2 marks)

Answer 1

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

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

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

[ 1.5 mark ]