91Ó°ÊÓ

Write each fraction as an equivalent fraction with the given denominator. $$ \frac{2}{3}=\frac{ }{21} $$

Recall that to find the average of two numbers, we find their sum and divide by \(2 .\) For example, the average of \(\frac{1}{2}\) and \(\frac{3}{4}\) is \(\frac{\frac{1}{2}+\frac{3}{4}}{2}\). Find the average of each pair of numbers. $$\frac{1}{4}, \frac{2}{14}$$

Solve. If no equation is given, perform the indicated operation. $$ \frac{5}{4} y=\frac{1}{2}-\frac{7}{10} $$

Perform each indicated operation. $$ 6 \frac{2}{3} \cdot 2 \frac{3}{4} $$

Solve. Write each fraction in simplest form. There are 100 centimeters in 1 meter. What fraction of a meter is 20 centimeters?

Recall that to find the average of two numbers, we find their sum and divide by \(2 .\) For example, the average of \(\frac{1}{2}\) and \(\frac{3}{4}\) is \(\frac{\frac{1}{2}+\frac{3}{4}}{2}\). Find the average of each pair of numbers. $$\frac{5}{6}, \frac{7}{9}$$

Insert \(<\) or \(>\) to form a true sentence $$ \frac{5}{9} \quad \frac{6}{11} $$

Write each fraction as an equivalent fraction with the given denominator. $$ \frac{5}{6}=\frac{ }{24} $$

Solve. If no equation is given, perform the indicated operation. $$ \frac{b}{4}=\frac{b}{12}+\frac{2}{3} $$

Perform each indicated operation. See Examples 1 through 15. $$ \frac{a b^{2}}{c} \cdot \frac{c}{a b} $$