# How do you calculate (3.6xx10^(-13))/(7.6xx10^(-13))?

$\frac{9}{19}$
$\frac{3.6 \times \cancel{{10}^{- 13}}}{7.6 \times \cancel{{10}^{- 13}}} \textcolor{w h i t e}{\times \times \times \times \times} \leftarrow$ cancel any like factors
$\frac{3.6}{7.6} \times \frac{10}{10} = \frac{36}{76} \textcolor{w h i t e}{\times \times \times \times \times} \leftarrow$ get rid of decimals
$\frac{36}{76} \frac{\div 4}{\div 4} = \frac{9}{19} \textcolor{w h i t e}{\times \times \times \times \times} \leftarrow$ simplify the fraction