Subtracting Fractions of Inches

6/7 - 1/4 = ______

• 15/28

• 17/28

• 5/3

• 31/28

The number one rule for adding and subtracting fractions is to...

• find the GCF.

• find a least common denominator.

• line up the fractions.

• add the numerators.

7 5/12 - 2 7/12 =

• 5 5/12

• 4 10/12

• 4 2/12

• 4 5/6

When adding or subtracting fractions, I have to use or find ________ before I can solve.

• Factoring

• LCD

• GCF

• Division

• -4/3
• 13/18
• 4/3
• 2/9

• 3/20
• 1/1
• 3/9
• 1/9

What is the difference of these fractions in lowest terms?

• 2/4

• 0

• 0/4

• 1/2

What is the first step in adding or subtracting fractions with unlike denominators?

• Write equivalent fractions

• Add the numerators

• List out the multiples to find a common denominator

• Simplify the answer