# Question 79d0e

Mar 4, 2017

=£31.50

#### Explanation:

A percentage is a way of expressing a fraction.
A percentage is a fraction out of 100.

70% " of " 45 can be written as:

$\frac{70}{100} \times \frac{45}{1} \text{ } \leftarrow$ simplify the fractions.

$\frac{{\cancel{70}}^{7}}{{\cancel{100}}^{{\cancel{10}}^{2}}} \times {\cancel{45}}^{9} / 1$

$= \frac{63}{2}$

=£31.50#