Easy Common Denominators

A common multiple of the denominators of two or more fractions.

• Common Denominators

• Equivalent Fractions

• Mixed Number

• Simplest Form

What is the least common denominator of 1/7 and 3/6?

• 14

• 21

• 7

• 42

What is the least common denominator of 6/8 and 4/12?

• 12

• 24

• 8

• 16

What is the least common denominator of 2/6 and 7/8?

• 36

• 8

• 18

• 24

You must find the ​ (a)   before you can add or subtract fractions with unlike denominators.

• common denominator

• common numerator

• multiple

• simplified fraction

You must find the (a)   before you can add or subtract fractions with unlike denominators.

• common denominator

• common numerator

• multiple

• simplified fraction

• 6

• 12

• 8

• 7

3/12 ___ 3/4

• >

• <

• =

Which 2 expressions​ do you need to find Common Denominators for?​ (a)   ​ (b)  

Mathematical Equivalence

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