Subtracting Fractions with Unlike Denominators

• a

• b

• c

• d

Tags

5.3.H

5.3.K

• a

• b

• c

• d

Tags

5.3.H

5.3.K

What steps do you need to take before you add or subtract fractions with unlike denominators?

• Find a common denominator and then add the denominators.

• Find a common denominator and make equivalent fractions.

• Multiply the numerators and denominators.

• Rename the fractions to improper fractions

Tags

CCSS.7.NS.A.1C

• -4/3
• 13/18
• 4/3
• 2/9

Tags

CCSS.7.NS.A.1C

#1

• 1/10

• 2/5

• 4/5

• 1 and 3/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 3/20
• 1/1
• 3/9
• 1/9

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 1/12
• 1
• 2/35
• 23/25

Tags

CCSS.7.NS.A.1C

• 1/12
• 1
• 2/35
• 23/25

Tags

CCSS.7.NS.A.1C

• 2/15

• 2/0

• 1/2

• 0/-2

Tags

CCSS.7.NS.A.1C

What is the difference of these fractions in lowest terms?

• 7/9

• 1/5

• 12/20

• 1/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2