91Ó°ÊÓ

Simplify by dividing. See Examples 14 through 19. $$\frac{-20}{1}$$

Perform each indicated operation. If the result is an improper fraction, also write the improper fraction as a mixed number. $$4-\frac{1}{5}$$

Determine whether each pair of fractions is equivalent. \(\frac{16}{20}\) and \(\frac{9}{16}\)

$$ \frac{3}{8}+\frac{5}{12 x} $$

Find the \(L C D\) of each list of fractions. $$ \frac{23}{18}, \frac{1}{21} $$

Determine whether each pair of fractions is equivalent. \(\frac{8}{18}\) and \(\frac{12}{24}\)

Calculate \(\frac{2^{3}}{3}\) and \(\left(\frac{2}{3}\right)^{3} .\) Do both of these expressions simplify to the same number? Explain why or why not.

Solve. If no equation is given, perform the indicated operation. $$ -\frac{5}{8} y=\frac{3}{16}-\frac{9}{16} $$

Perform each indicated operation. See Examples 1 through 15. $$ \frac{21 x^{2}}{10 y} \div \frac{14 x}{25 y} $$

Simplify by dividing. See Examples 14 through 19. $$\frac{0}{-2}$$