Fractions Subtracting Unlike Denominators

5/8 - 3/4 =

• 1/8

• 6/8

• 13/8

• 7/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Find the difference:

7/9 - 2/5

• 17/45

• 5/4

• 5/9

• 5/45

Tags

CCSS.7.NS.A.1C

What is the first step in finding the Least common Denominator for two fractions?

• List all of the multiples of each numerator

• Multiply the numerators together

• Add the denominators

• List the first few multiples of each denominator

Solve.

• 1 9/11

• 2 5/11

• 8/11

• 5/22

Tags

CCSS.7.NS.A.1C

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

• common numerator

• common denominator

• equivalent fraction

• mixed number

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

Once I have completed adding or subtracting fractions, I should always ____________ if possible.

• make equivalent fractions

• add again

• simplify

• multiply

What is the best common denominator for this problem?

• 5

• 2

• 20

• 10

Find equivalent fractions and common denominators for the problem shown above.

• 1/10 and 4/10

• 5/10 and 4/10

• 1/20 and 2/20

• 5/10 and 2/10

Solve.

• 1 5/8

• 1/8

• 1/4

• 1 1/4

Tags

CCSS.7.NS.A.1C