Question

Express $\frac{18}{20}$ in decimal form.

• A. 0.9
• B. 9.0
• C. 90.0

Answer 1

The correct option is A 0.9

First simplify the expression $\frac{18}{20}.$

$\frac{18}{20}$
$=\frac{2\times 9}{2\times 10}$
(cancelling $2$ from numerator and denominator)
$=\frac{9.0}{10}$

Here the denominator is $10.$
$\therefore$ the decimal point in the numerator will be shifted leftwards by one place.

$\frac{9.0}{10}=\frac{0.90}{1}=0.9$