Add and Subtract Fractions with Unlike Denominator

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

• 9
• 8
• 12
• 6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

6/7 - 2/3 =

• 32/21
• 4/21
• 1 3/21
• 7/21

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/4 + 2/8 = 

• 1
• 5/12
• 6/32
• 5/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

(Choose one that is true) When you add or subtract fractions with unlike denominators you..

• Find the greatest common factor to change your denominator

• Change the denominator by picking a random number then divide

• Find the least common multiple to change your denominator

• none of these are true

Tags

CCSS.7.NS.A.1C

3/4 - 2/10

• 11/20

• 9/10

• 11/24

• 9/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

4/5 + 3/8 (be sure to simplify)

• 32/40

• 1 7/40

• 2 5/7

• 1 1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/10 + 8/5

• 5/9

• 1/10

• 2 1/10

• 2 2/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/5 - 5/10

• 1/10

• 8/5

• 1/5

• 8/0

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

8/10 - 1/5

• 5/3

• 3/5

• 9/13

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2