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.