Question

Convert the following into decimals and find the sum rounded up to $2$ decimal places.

$\frac{1}{2}$, $\frac{5}{2}$, $\frac{4}{9}$, $\frac{5}{20}$, $\frac{3}{10}$, $\frac{7}{100}$, $\frac{100}{2}$, $\frac{100000}{10000000}$, $\frac{12}{48}$, $\frac{9}{99}$, $\frac{5}{25}$
Ans: ___

Answer 1

$\frac{1}{2}=0.5$

$\frac{5}{2}=2.5$

$\frac{4}{9}=0.4444$

$\frac{5}{20}=0.25$

$\frac{3}{10}=0.3$

$\frac{7}{100}=0.07$

$\frac{100}{2}=50$

$\frac{100000}{10000000}=0.01$

$\frac{12}{48}=0.25$

$\frac{9}{99}=0.09090909$

$\frac{5}{25}=0.20$

∴ $\text{sum = 54.615}$

When rounded up to two decimal place,

$\text{sum = 54.62}$