Fractions

1
Chapter 2

• Fractions

2
Fractions

• Fractions are one way to express part of
  something.

3
Writing Fractions

• Seven inches is what fractional part of a foot?
• 11 ounces is what fractional part of a pound?

4
Types of Fractions
1
2
3
4
5
6

• Common (proper fractions)
• Improper fractions
• Mixed Numbers

5
Calculators and Fractions

• Use the fraction key to input

3
4
1
1
6
5
6
Equivalent Fractions

• Fractions that look different yet describe the
  same quantity.

7
Making Equivalent Fractions

• Make a new fraction equivalent to

8
Making Equivalent Fractions

• Given create an equivalent fraction with a
  denominator of 24.

9
Reducing Fractions

• Car 16 gallon gas tank
• Gas Gauge Needle is in the middle
• What fraction represents how much gas is in the
  car?

10
Practice Reducing Fractions

• Reduce each fraction if possible.

Use the fraction key to reduce
11
Convert Mixed Numbers to Improper Fractions
12
Convert Mixed Numbers to Improper Fractions

• Change each of the following to improper fraction
  form

Use the fraction key to convert
13
Convert from Improper to Mixed

• Which measurement would be easier to find on a
  tape measure?

14
Convert from Improper to Mixed
Use the fraction key to convert

• Change each to mixed number form.

15
Comparing Fractions

• Which fraction represents a larger quantity?

16
Comparing Fractions

• Which is larger?

17
Comparing Fractions

• Which is larger?

18
Finding the LCD

• Determine the least common denominator 4, 3, and
  6.

• Determine the least common denominator 3, 4, and
  10.

19
Computing with Fractions

• Multiplication

20
Multiplication
3 x 1
3

8
4 x 2
21
Multiplication
22
Multiplication
23
Computing with Fractions

• Division

24
Division

• Invert and Multiply

3
1
x

2
4
25
Division
26
Division
27
Computing with Fractions

• Addition and Subtraction

28
Addition

1
2
3
4
5
6
29
Addition
1 5
6
8
30
Addition

1
2
3
31
Addition
32
Practice Adding or Subtracting
33
Practice
34
Computing with Fractions

• Additional Topics in Subtraction

35
Subtracting Additional Topics
36
Subtracting Fractions Borrowing
8
37
Subtracting Fractions Borrowing
38
The End