All the Rules of Fractions
Do you all the rules of fractions? Can you solve the problem below
without using a calculator? If you can't, you've come to the right
place.

Need some help?
Before you start solving problems with fractions, make sure you have a strong
understanding of fractions
first. The lesson uses money to help you relate to the topic. You
may also want to take a look at our lesson covering the ever-important fraction
bar.
For a really in-depth look at the rules of fractions, check out
wikipedia. Otherwise, take a look at GradeA's five easy rules below.
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#1: Common Denominators for Addition
& Subtraction |
You must always have a common denominator to add or subtraction
fractions. We have an
adding fractions pizza party lesson available, as well as a page on
subtracting fractions.
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#2: Reduce Fractions to Lowest Terms
when Needed |
Having two-fourths of a pizza is the same as having one-half of a pizza.
Be sure you have an understanding of equivalent fractions and you know how to
reduce fractions
to lowest terms when asked to.
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#3: "Fly" when you Multiply
Fractions |
When multiplying fractions remember this trick: Fly across the top and fly
across the bottom. There is no need to find a common denominator when you here -
you'll love learning to
multiply fractions.
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#4: Dividing Fractions -
Copy.Change.Flip |
Dividing fractions is the same as multiplying fractions with one extra step:
You need to "flip" (take the reciprocal) of the second fraction. Come
learn how to
divide fractions.
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#5: Convert to the Proper Form -
Decimals, Percents? |
Do you know the difference between fractions, decimals and
percents? They all mean the same thing, just written in different forms.
Conversions available:
Teachers: Interested in a way of teaching fractions with
hands-on manipulatives? Check out our
free fraction
strips new!. We offer
a totally free easy-to-use download, and give you some suggestions in how to
teach with them. Don't miss it!
Know all the rules of fractions now?
Practice your skills with
free
fractions worksheets.
Return to the GRADE-A homepage.

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