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Fractions

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Lesson 14-15 Fractions & Decimals Expanding & Reducing Fractions Fractions to Decimals/Decimals to Fractions Rounding Repeaters Fractions Expanding/Reducing Fractions ... – PowerPoint PPT presentation

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Title: Fractions

1
Lesson 14-15
• Fractions Decimals
• Expanding Reducing Fractions
• Fractions to Decimals/Decimals to Fractions
• Rounding Repeaters

2
Fractions
3
Expanding/Reducing Fractions
• if we multiply the top and bottom of a fraction
by the same number, we get an equivalent fraction
• to reduce, divide the top and bottom by the same
number

4
Example 14.1
• Expand the fraction ¾ so that the denominator is
24.

5
Example 14.2
• Write each number with a denominator of 20
• 5
• 3/5

6
Example 14.3
• Reduce 30/45 to lowest terms.

7
Example 14.4
• Reduce 16/32 using GCF (16,32).

8
Fractions to decimals
• To write a fraction of a whole number as a
decimal number, divide the numerator by the
denominator

9
Example 15.1
• Write each fraction as a decimal number
• 3/8
• 1/30

10
Example 15.2
• Write each fraction as a decimal number
• 3/10
• 2/5
• 3/20

11
Example 15.3
• Round to the nearest millionth.

12
Example 15.4
• Write 0.041 as a fraction.

13
Example 15.5
• Write 0.35 as a fraction.