[tex] \frac{4}{5} = \frac{x}{10} \\
We\ Do\ This\ Because\ We\ Know\ That\ We\ Need\ To\\
Find\ How\ Many\ Tenths\ \frac{4}{5}\ Equals.\\
We\ Can\ Multiply\ 5\ and\ x,\ as\ well\ as\ 4\ and\ 10.\\
40=5x\\
Divide\ Both\ Sides\ By\ 5.\\
We\ Find\ That\ There \ Are\ 8\ Tenths \ In \frac{4}{5} [/tex]