Add and Simplify Fractions with Unlike Denominators

2/6 + 2/8 =

• 4/14

• 4/8

• 7/12

• 8/16

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

4/8 + 1/3 =

• 5/11

• 4/8

• 13/24

• 4/11

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the sum?

• 1

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30

• 11

• 6

• 5

When adding or subtracting fractions with unlike denominators, what is the first step?

• Add the numerators

• Add the denominators

• Find a common denominator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When adding and subtracting fractions, what needs to be the same?

• the numerator

• the denominator

• nothing

• everything

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How can you find a common denominator?

• Add the denominators together

• Pick your favorite number

• Find a common multiple for the two denominators

After changing the denominator, what do you need to do to the numerator?

• Nothing

• Multiply the numerator by the same number as the denominator

• Double it

Tags

CCSS.5.NF.B.5B

Solve and simplify to lowest terms

• A

• B

• C

• D

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Adding & Subtracting Fractions with

UNLIKE Denominators

• I'm ready to try

• Let's do this!

• I'm not sure about these.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2