정수와 유리수

Add and Subtract Fractions with a Common Denominator

In the following exercises, add.

$\frac{5}{12}+\left(-\,\frac{7}{12}\right)+\left(-\,\frac{11}{12}\right)$

In the following exercises, subtract.

$\frac{11}{15}-\,\frac{7}{15}$

In the following exercises, subtract.

$\frac{9}{13}-\,\frac{4}{13}$

In the following exercises, subtract.

$\frac{11}{12}-\,\frac{5}{12}$

In the following exercises, subtract.

$\frac{7}{12}-\,\frac{5}{12}$

In the following exercises, subtract.

$\frac{19}{21}-\,\frac{4}{21}$

In the following exercises, subtract.

$\frac{17}{21}-\,\frac{8}{21}$

In the following exercises, subtract.

$\frac{5y}{8}-\,\frac{7}{8}$

In the following exercises, subtract.

$\frac{11z}{13}-\,\frac{8}{13}$

In the following exercises, subtract.

$-\,\frac{23}{u}-\,\frac{15}{u}$

In the following exercises, subtract.

$-\,\frac{29}{v}-\,\frac{26}{v}$

In the following exercises, subtract.

$-\,\frac{3}{5}-\left(-\,\frac{4}{5}\right)$

In the following exercises, subtract.

$-\,\frac{3}{7}-\left(-\,\frac{5}{7}\right)$

In the following exercises, subtract.

$-\,\frac{7}{9}-\left(-\,\frac{5}{9}\right)$

In the following exercises, subtract.

$-\,\frac{8}{11}-\left(-\,\frac{5}{11}\right)$

Mixed Practice

In the following exercises, simplify.

$-\,\frac{5}{18}\cdot \frac{9}{10}$

Mixed Practice

In the following exercises, simplify.

$-\,\frac{3}{14}\cdot \frac{7}{12}$

Mixed Practice

In the following exercises, simplify.

$\frac{n}{5}-\,\frac{4}{5}$

Mixed Practice

In the following exercises, simplify.

$\frac{6}{11}-\,\frac{s}{11}$

Mixed Practice

In the following exercises, simplify.

$-\,\frac{7}{24}+\frac{2}{24}$