91Ó°ÊÓ

In the following exercise, add or subtract:$-\frac{39}{56}-\frac{22}{35}$

In the following exercise, add or subtract:$-\frac{33}{49}-\frac{18}{35}$

In the following exercise, add or subtract:$-\frac{2}{3}-(-\frac{3}{4})$

In the following exercise, add or subtract:$-\frac{3}{4}-(-\frac{4}{5})$

In the following exercise, add or subtract:$1+\frac{7}{8}$

In the following exercise, add or subtract:$1-\frac{3}{10}$

In the following exercise, add or subtract:$\frac{x}{3}+\frac{1}{4}$

In the following exercise, add or subtract:$\frac{y}{2}+\frac{2}{3}$

In the following exercise, add or subtract:$\frac{y}{4}-\frac{3}{5}$

In the following exercises, use the divisibility tests to determine whether each number is divisible by $2,3,5,6,$and $10.$

$39,075$