Subtracting Fractions with Common Denominators

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3

• 4

• 24

• 12

3/4 - 2/10

• 11/20

• 9/10

• 11/24

• 9/4

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

When adding or subtracting fractions, I NEVER add or subtract the...

• numerators

• denominators

• mixed numbers

• equivalent fractions

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Tags

CCSS.4.NF.B.3A

Tags

CCSS.4.NF.B.3A

The ____________________ is a common multiple of two or more denominators.

• equivalent

• simplest fraction

• common denominator

• mixed number

I know I must __________ if the question asks for the difference.

• subtract

• add

• multiply

• divide

Tags

CCSS.5.NBT.B.7

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2