Adding and Subtracting Fractions with unlike denominators

When the denominators are not the same, I must find a...

• common numerator

• common denominator

• equivalent fraction

• mixed number

Tags

CCSS.4.NF.A.1

CCSS.5.NF.B.5B

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

When adding or subtracting fractions, I always add or subtract the...

• numerators

• denominators

• mixed numbers

• equivalent fractions

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the least common denominator of 6/8 and 4/12?

• 12
• 24
• 8
• 16

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Tags

CCSS.7.NS.A.1C

Tags

CCSS.7.NS.A.1C

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Tags

CCSS.7.NS.A.3