Question

I need help on Q.19 please

Answer 1

This is simple.

=$3\frac{3}{5}$ ÷ $4\frac{1}{2}$
change the mixed fractions to improper ones.
$\frac{18}{5}$ ÷ $\frac{9}{2}$
Multiply $\frac{18}{5}$ by the reciprocal of $\frac{9}{2}$ which is $\frac{2}{9}$  
 
=$\frac{18}{5}$ ×  $\frac{2}{9}$
=$\frac{36}{45}$

Since it can be simplified further, we get the answer
$\frac{4}{5}$

How?
There is a common multiple 9
$\frac{36/9}{45/9}$
=$\frac{4}{5}$
Answer= B. $\frac{4}{5}$