Pre-Algebra Demystified

(Marvins-Underground-K-12) #1
ANSWERS

1. 3^18

2. 15^1140

3. 3^12

4. 3 247

5. 5^34

6. 2^47

7. 5 169

8. 6^1324

9.

23

30

10. 8^13

Multiplication of Fractions


Multiplying fractions uses the principle ofcancellation. Cancellation saves
you from reducing the answer after multiplying.
To cancel, divide any numerator and any denominator by the largest number
possible (that is, the greatest common factor).
To multiply two or more fractions:

 Step 1 Cancel if possible.
 Step 2 Multiply numerators.
 Step 3 Multiply denominators.
 Step 4 Simplify the answer if possible.

EXAMPLE

Multiply^38 ^49.

64 CHAPTER 4 Fractions: Part 2

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