Add and Subtracting Fractions

What number could be a common denominator for these three fractions?
1/2   and   1/3   and   1/4

• 9
• 8
• 12
• 6

6/7 - 2/3 =

• 32/21
• 4/21
• 1 3/21
• 7/21

3/4 + 2/8 = 

• 1
• 5/12
• 6/32
• 5/8

Tim did 1/12 of a load of laundry on Sunday and 1/4 of a load of laundry on Saturday. What fraction of laundry did Tim do in total?

• 2/16 loads done 
• 1/3 loads done 
• 2/3 loads done 
• 2/12 loads done 

Simplify  9/45

• 3/15
• 5
• 4
• 1/5

Destiny was to feed her dog in the morning. She was to give the large dog 7/8 of a scoop of dog food and the smaller dog 1/4 of a scoop. How much more dog food does Destiny need to give the large dog?

• 3/8 scoop

• 5/8 scoop

• 1/2 scoop

• 1 scoop

• 5 7/12
• 4 7/12
• 5 5/12
• 4 5/12

Jerome wants to walk to school. He lives 2 1/4 miles away. So far, he has walked 7/8 of a mile. How far does he have left to go?

• 1 3/8
• 2 6/4
• 1 6/8
• 2 3/4

3/4 + 2/8 = 

• 1
• 5/12
• 6/32
• 5/8

• 1
• 3
• 9
• 8

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3