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Chapter 6Fraction Computation

Adding and subtracting fractions involves very much the same steps. In both cases, there need to be common denominators, meaning the bottom numbers may need to be changed. I always tell my students this rhyme:

If adding or subtracting fractions is your game, then make sure to keep the denominators the SAME!

This helps them to remember that they need to have common denominators before computing.

Multiplying fractions is the easiest fraction computation because it is done by just multiplying the numerator and the denominator straight across. Common denominators are not needed. Division is done very much the same way as multiplication, but you multiply the reciprocal, or opposite of the second fraction. Once children ...

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