Review Multiplying and dividing fractions

Which model represents 3/5 of 15?

• a

• b

• c

• d

Which Equation matches this model?

• $\frac{1}{3\ }\ \div\ 3\$

• $\ \frac{1}{3}\ \times\ 3\$

• $3\ \div\ \frac{1}{3}$

• $3\ \times\ \frac{1}{3}$

 $Is\ this\ answer\ correct?\ \ \frac{2}{5}\ +\ \frac{3}{7}\ =\ \frac{5}{12}$  

• Yes! - because they added the numerators and denominators correctly

• No! - Because they did not add the numerators and denominators correctly. 

• No! because you need common denominators in order to add

Ashli walks  $\frac{7}{8}$  of a mile to school each day. Kristy walks  $\frac{1}{2}$  of a mile to school each day. How much further does Ashli walk than Kristy? 

•  $\frac{3}{8}$  

•  $\frac{6}{6}$  

•  $\frac{8}{10}$  

• These Fractions are equal 

Donna wants to make breakfast burritos for her class party. She buys 2 pounds of sausage. She wants each burrito to have 1/8 of a pound of sausage. How many burittos can she make? 

• 1/16 

• 16

• 4

• 1/4 

Sara had 1/5 of a cake left over from her 15th birthday party. She wants to split the cake evenly between her and her sister. How much of the cake will her sister receive?

• $\frac{1}{10}$

• 10

• $\frac{1}{45}$

• $\frac{1}{75}$

 $\frac{4}{6}\$  of  24 flights were delayed at the airport. How many flights were delayed? 

• 96

• 24

• 16

•  $\frac{96}{144}$  

Megan's cat had 9 kittens, 1/3 of them are black, and the rest are orange. How many are orange?

• 6

•  $\frac{1}{27}$  

• 27

• 3

How much chocolate will you get if I split a 5 pound chocolate bar evenly between my class of 30 students?

• 150

• $\frac{1}{5}$

• $\frac{1}{6}$

• 6

Heather, Nicole, Chris, and David each ate  1/8
 of a pizza. How much did they eat altogether?

•  $\frac{1}{32}$  

•  $\frac{1}{2}$  

• 2

• 4