Add and Subtract Fractions

What must you have to add and subtract fractions?

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

What is the least common denominator for 3 and 4?

• 6
• 4
• 3
• 12

What is the least common denominator for 7 and 2?

• 12
• 14
• 7
• 6

Tiffany bought 2/5 kg of cherries.  Linda bought 1/10kg of cherries.  How many kg of cherries did they buy altogether?  

• 1/5 kg
• 3/10 kg
• 5/15 kg
• 1/2 kg

Belle found two worms in the yard and measured them with a ruler.
One worm was 1/2 of an inch long.
The other worm was 1/4 of an inch long.
How much longer was the 1st worm than the 2nd worm?

• 1/2 inch
• 1/4 inch
• 3/4 inch
• 3/2 inch

Tags

CCSS.4.MD.A.2

CCSS.4.MD.B.4

CCSS.4.NF.A.2

3/5 + 1/4 = 

• 5/20
• 12/20
• 7/20
• 17/20

Tags

CCSS.4.NF.A.2

CCSS.4.NF.B.3

Solve and Simplify.

• 1/10
• 29/10
• 2  1/10
• 2   9/10

Solve and Simplify.

• 13
• 5  2/5
• 6  2/5
• 6  3/5

Trina makes coffee drinks at a coffee shop inside the local bookstore. During her last shift she used 4/5 of a gallon of whole milk and 2/3 of a gallon of non-fat milk to make drinks. How much milk did she use in all?

• 2/15 gallon 
• 6/15 gallon 
• 8/15 gallon 
• 1 and 7/15 gallons 

Nick spent ⅚ of an hour reading, ⅙ of an hour studying spelling words,  and ⅓ of a hour writing an essay. What is the total amount of time Nick spent reading, studying, and writing? 

• 1 and 1/3 hour 
• 1 and 1/2 hour 
• 1 and 1/6 hour