Fractions - Cool math Pre-Algebra Help Lessons - Adding & Subtracting Fractions with Whole and Mixed Numbers

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Coolmath Pre-Algebra
Fractions Lesson 13 - Adding & Subtracting Fractions with Whole and Mixed Numbers (page 2 of 3)
---- This pre-algebra lesson explains how to add and subtract fractions and whole and
mixed numbers.

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OK, that's easy! But, what about

5 - 3/8 ?

Well, we can't just stick it together like we would if it was addition.

We need to get a common denominator... But, the 5 doesn't even have a denominator!

That's OK... Just think of pizzas cut into 8 pieces...

a whole pizza cut into 8 equal pieces

How many pieces would there be in 5 pizzas? Yep!

pieces

Check it: is the same as which . Yep!

Back to the problem:

Continued on the next page

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