Comparing Fractions Finding Common Denominator

LCM is helpful when (2 answers)

• reducing a fraction to its simplest form

• finding a common denominator to compare fractions

• finding a common denominator to add/subtract fractions

• reducing a mixed fraction to improper

Check all fraction operations that required common denominators:

• addition

• subtraction

• multiplication

• division

• comparing fractions

Convert both fractions into equivalents with the same denominator by finding the lowest common multiple. Then focus on the numerators. This method works for...

• comparing, ordering, adding and subtracting fractions.

• comparing and ordering fractions only.

• adding and subtracting fractions only.

• Finding a fraction of an amount.

Answer explanation

Find a Common Denominator & Complete the following inequality statement:
3/4 ▢ 2/3

• ≻

• ≺

• =

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

What is the common denominator?

Find a Common Denominator &
Complete the following inequality statement:
1/2  ▢  -1/3

• ≻

• ≺

• =

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

1/4 ___ 2/3

• >

• <

• =