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Coolmath Pre-Algebra
Fractions Lesson 9 - Which Fraction is Greater? Part 2   (page 2 of 3)
---- This pre-algebra lesson explains how to figure out which fraction is greater.

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Or... you can use the LCM (least common multiple) for your new denominator:

The LCM of 4 and 10 is 20...

Let's make the changes...

So 3/4 is greater than 7/10 again!

How about this one?

Which is greater: 2/5 or 20/49?

Let's use 5 x 49 = 245 as our new denominator (it's the LCM):

89/245 is less than 100/245

So 2/5 is less than 20/49

Continued on the next page

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