문자와 식 전체 문제

In the following exercises, find the additive inverse.

$-\frac{7}{15}$

In the following exercises, find the multiplicative inverse.

$\frac{9}{2}$

In the following exercises, find the multiplicative inverse.

$-5$

In the following exercises, find the multiplicative inverse.

$\frac{1}{10}$

In the following exercises, find the multiplicative inverse.

$-\frac{4}{9}$

In the following exercises, simplify.

$83\cdot 0$

In the following exercises, simplify.

$\frac{0}{9}$

In the following exercises, simplify.

$\frac{5}{0}$

In the following exercises, simplify.

$0\div \frac{2}{3}$

In the following exercises, simplify.

$43+39+(-43)$

In the following exercises, simplify.

$(n+6.75)+0.25$

In the following exercises, simplify.

$\frac{5}{13}\cdot 57\cdot \frac{13}{5}$

In the following exercises, simplify.

$\frac{1}{6}\cdot 17\cdot 12$

In the following exercises, simplify.

$\frac{2}{3}\cdot 28\cdot \frac{3}{7}$

In the following exercises, simplify.

$9(6x-11)+15$

A floral arbor is $7$ feet tall. Convert the height to inches.

A picture frame is $42$ inches wide. Convert the width to feet.

Kelly is $5$ feet $4$ inches tall. Convert her height to inches.

A playground is $45$ feet wide. Convert the width to yards.

The height of Mount Shasta is $14,179$ feet. Convert the height to miles.