what is 21/360 times 36

$${\frac{{\mathtt{21}}}{{\mathtt{360}}}}{\mathtt{\,\times\,}}{\mathtt{36}}$$

We can cancel the 360 and 36 so we get

$${\frac{{\mathtt{21}}}{{\mathtt{10}}}}{\mathtt{\,\times\,}}{\mathtt{1}}$$

So now we can make it a mixed number fraction which is $${\mathtt{2}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{1}}}{{\mathtt{10}}}}$$ which is 2.1.