5/27/22, 3:27 AM Finding Common Denominators
Fractions:
Finding Common Denominators
In order to add fractions, the denominators must be the same. In the example of pizza, this
means each slice has to be the same size. If we are working with pizza slices that have been cut
into different sizes, we need to find a way to cut all of them into slices that are the same size.
This is done using Least Common Multiples. LCM’s are how we change the denominator of a
fraction. We multiply by 1, but the 1 doesn’t look like a 1. It is in the form of something like 33 or
7
7
. (Remember, anything divided by itself equals 1.) The following video will give more details
and work through some examples.
0::55 1x
Video Source (09:55 mins) | Transcript
The following video shows more examples using measurements of fractions of an inch instead of
pizza slices:
https://content.byui.edu/file/b8b83119-9acc-4a7b-bc84-efacf9043998/1/Math-1-8-2.html 1/3
Fractions:
Finding Common Denominators
In order to add fractions, the denominators must be the same. In the example of pizza, this
means each slice has to be the same size. If we are working with pizza slices that have been cut
into different sizes, we need to find a way to cut all of them into slices that are the same size.
This is done using Least Common Multiples. LCM’s are how we change the denominator of a
fraction. We multiply by 1, but the 1 doesn’t look like a 1. It is in the form of something like 33 or
7
7
. (Remember, anything divided by itself equals 1.) The following video will give more details
and work through some examples.
0::55 1x
Video Source (09:55 mins) | Transcript
The following video shows more examples using measurements of fractions of an inch instead of
pizza slices:
https://content.byui.edu/file/b8b83119-9acc-4a7b-bc84-efacf9043998/1/Math-1-8-2.html 1/3
