7th grade math- quiz review

Which of these is the first step when multiplying or dividing mixed numbers?

• Find a common denominator

• Leave, Change, Flip

• Multiply the numerators together

• Convert to improper fractions

 $\frac{4}{5}\ \times\ \frac{7}{9}$  

•  $\frac{11}{14}$  

•  $\frac{21}{45}$  

•  $\frac{36}{35}$  

•  $\frac{28}{45}$  

 $1\frac{3}{4}\ \times\ 5$  

•  $5\frac{3}{4}$  

•  $8\frac{3}{4}$  

•  $1\frac{15}{20}$  

•  $6\frac{3}{4}$  

 $1\frac{2}{5}\ \times\ 2\frac{1}{3}$  

•  $3\frac{2}{15}$  

•  $3\frac{3}{15}$  

•  $3\frac{4}{15}$  

•  $3\frac{5}{15}$  

A batch of oatmeal muffins calls for $\frac{2}{3}$ cups of oats. How many cups of oats do you need to make four batches of muffins?

•  $2$  cups
  

•  $\frac{2}{12}\$ cup
  

•  $4\frac{2}{3}$ cups

•  $2\frac{2}{3}$ cups

 $\frac{3}{4}\ \div\ \frac{7}{8}$ 

•  $\frac{21}{32}$  

•  $\frac{24}{28}$ 

•  $1\frac{11}{21}$  

•  $1\frac{4}{24}$  

 $2\ \div\ \frac{1}{3}$  

•  $\frac{2}{3}$  
  

• 6

•  $1\frac{1}{2}$ 

•  $\frac{1}{6}$  
  

 $4\frac{3}{4}\ \div\ 1\frac{1}{2}$  

•  $4\frac{3}{8}$  
  

•  $\frac{8}{57}$  

•  $1\frac{6}{16}$  

•  $3\frac{2}{12}$  

Kelly has  $2\frac{1}{2}$  feet of fabric.   She needs  $\frac{1}{4}$ foot to make each ribbon.  How many ribbons can Kelly make?

• 5

•  $\frac{5}{8}$  

• 10

• 12

Convert this mixed number to an improper fraction.

• $\frac{24}{5}$

  
  

• $\frac{10}{5}$
  

• $\frac{30}{5}$
  

• $\frac{34}{5}$