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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
again!
How about this one?
Which is greater:
or ?
Let's use
as our new denominator (it's the LCM):


So

Head on over to the next
page to try some fraction practice problems...
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