### Home > CAAC > Chapter 14 > Lesson 14.2.1.1 > Problem2-18

2-18.

Remember to make a common denominator.

$\frac{3\textit{m}}{12}+\frac{4\textit{m}}{12}$

$\frac{7\textit{m}}{12}$

Remember to distribute the negative sign.

$\frac{8\textit{ mmy}}{\textit{xmx}}$

This is equivalent to:

Remember division means multiply by the reciprocal of the divisor.

$\left(\frac{2}{3}\right)\cdot\left(\frac{3}{5}\right)$

$\frac{2}{5}$