Math Review Subtracting Fractions & Mixed Numbers

Before adding or subtracting fractions, you need to make sure...

• you add or subtract

• the denominators are the same

• you write down the problem

• you ask the teacher

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

The top number of a fraction is called the

• answer

• numerator

• simplify

• denominator

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

3/4  -  1/2

• 1/3
• 1/4
• 2/3
• 1/5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/10  -  1/5

• 2/11
• 4/5
• 2/3
• 1/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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

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

• 3
• 4
• 24
• 12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

1/2  -  1/8

• 5/8
• 2/5
• 3/8
• 5/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

11/12  -  1/4

• 3/4
• 7/8
• 2/3
• 1/3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

7  3/4  -  6  1/4

• 1  1/2
• 3  3/5
• 1  3/4
• 2  5/7

Tags

CCSS.7.NS.A.1C

6  2/5  -  3  1/2

• 2  7/10
• 2  9/10
• 3  8/11
• 3  3/10

Tags

CCSS.7.NS.A.1C