Addition and Subtraction Like Denominators

Find the sum.
5/9  +  2/9

• 5/9

• 2/9

• 7/9

• 7/18

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Find the difference.
4/5  -  1/5

• 2/5

• 3/5

• 1/5

• 3/10

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

3/8 + 7/8

• 10/8

• 3/8

• 4/8

• 1/2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Find the sum 1/3 +1/3

• 2/6

• 1/6

• 2/3

• 2/4

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

What is 3/4 + 1/4 = ?

Mathematical Equivalence

ON

Tags

CCSS.4.NF.B.3A

What is the sum of these fractions in lowest terms?

• 5/12

• 5/24

• 6/12

• 6/144

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

When adding or subtracting RATIONAL NUMBERS with LIKE DENOMINATOR denominator you should

• multiply the denominators

• add or subtract the numerators

• keep the denominator

• simplify if need

Tags

CCSS.7.NS.A.1C

When adding or subtracting rational numbers, what must you have?

• Common Numerator

• Quick Answering Skills

• Common Numbers

• Common Denominators

Tags

CCSS.7.NS.A.1C

• 3/8
• 3/16
• 1/8
• 2/8

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

3/12 + 4/12

• 7/12

• 6/12

• 12/12

• 1/12

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D