Adding and Subtracting Fractions

What number could be a common denominator for these two fractions?

2/3 and 3/4

• 3

• 4

• 7

• 12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Which of these numbers could NOT be a common denominator for these two fractions?
1/6   and   1/4

• 12
• 18
• 24
• 36

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Fill in the blank in order to create a true number sentence:
1/2 = __ /8

• 2
• 4
• 6
• 8

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B

Fill in the blank in order to create a true number sentence:
3/5 = __ /10

• 6
• 15
• 5
• 10

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3B

2/3 + 1/2 = 

• 6/7
• 2/6
• 3/5
• 7/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/7 + 1/28 = 

• 6/35
• 12/196
• 21/28
• 1

Tags

CCSS.7.NS.A.1C

4/5 - 1/20 = 

• 0
• 20/15
• 3/15
• 15/20

Tags

CCSS.7.NS.A.1C

93/100 - 4/5 = 

• 1/2
• 13/100
• 89/95
• These fractions cannot be subtracted

Tags

CCSS.7.NS.A.1C

What must you have to add and subtract fractions?

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

Tags

CCSS.7.NS.A.1C

Convert the mixed fraction to a improper fraction.

• 27 /7
• 21 /7
• 31 /7
• 41/7

Tags

CCSS.3.NF.A.3C