Operations with Fractions and Decimals

How do you multiply a fraction by a fraction?

• add straight across
• criss cross and multiply
• multiply straight across
• guess and hope you are right.

Tags

CCSS.5.NF.B.6

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

Tags

CCSS.5.NF.B.6

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30
• 11
• 6
• 5

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

Tags

CCSS.7.NS.A.1C

Which fraction is equivalent to 1/2?

• 10/19
• 10/17
• 10/11
• 10/20

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

A scientist has a bottle that is $\frac{5}{6}$  full of solution. He uses  $\frac{2}{5}$  of the solution in the bottle for an experiment. How much of a bottle of solution does he have left?

•  $\frac{1}{3}$  of a bottle

•  $\frac{1}{2}$  of a bottle

•  $\frac{14}{30}$  of a bottle

•  $\frac{1}{5}$  of a bottle

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Patty wants to run $\frac{5}{6}$  of a mile everyday for 5 days. John wants to run   $\frac{3}{4}$  of a mile every day for 6 days. Who will run the greater distance?

• Patty 

• John

Tags

CCSS.4.NF.A.2

A dog's food bowl holds 2 cups of dog food. Pete uses a scoop that holds $\frac{1}{3}$ of a cup of dog food. How many scoops will it take for Pete to fill the dog bowl? 

What operation do you use to solve this problem?

• Add

• Subtract

• Multiply

• Divide

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Sherry needs 3 2/3 cups of sugar to bake a cake. She is baking 4 cakes for a church gathering. Sherry would need to _ to determine how many cups of sugar she needs for these cakes.

• Add

• Subtract

• Multiply

• Divide

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Richard had 3 pieces of rope. One piece was 3/8 yard long, another was 1 1/4 yards long, and the third was 2 1/2 yards long. To find the total amount of rope Richard had, you would need to...

• Add

• Subtract

• Multiply

• Divide

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2