Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Chapter 2 Fractions.

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Presentation transcript:

Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Chapter 2 Fractions

Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Multiplying Fractions and Mixed Numbers 2.4

Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Multiplying Fractions Multiplication of fractions is used when we want to take a fractional part of something. yields 5 out of 18 squares.

Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Multiplying Fractions To multiply two fractions, we multiply the numerators and multiply the denominators. In general, for all positive whole numbers a, b, c, and d, (when b and d are not 0).

Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Multiplying Proper or Improper Fractions Example: Multiply Simplify the fraction. To make multiplying easier, the fractions may be simplified before multiplying

Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Multiplying Mixed Numbers Example: Multiply To multiply mixed numbers, first change each mixed number into an improper fraction. 2 1

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