Fractions With Like Denominators - PowerPoint PPT Presentation

About This Presentation
Title:

Fractions With Like Denominators

Description:

Title: Adding and Subtracting Like Fractions Author: Administrator Last modified by: Josh Hammond Created Date: 11/4/2004 11:42:22 PM Document presentation format – PowerPoint PPT presentation

Number of Views:145
Avg rating:3.0/5.0
Slides: 9
Provided by: kyus
Category:

less

Transcript and Presenter's Notes

Title: Fractions With Like Denominators


1
Fractions With Like Denominators
  • Lesson 4-2

2
Terminology
Like decimals, fractions represent parts of
numbers. A fraction is usually a number that is
between 0 and 1.
Numerator - number on top
Denominator - number on bottom
3
To add or subtract fractions with like
denominators
  • If the denominators are already the same, then
    youre ready to add or subtract.
  • Add or subtract the numerators. Keep the
    denominators the same.
  • Simplify (reduce) the fraction, if possible.
  • If you end up with an improper fraction, change
    it to a mixed number.

4
Examples
1
2
3


5
5
5
This answer cannot be reduced any further.
5
9
4
5
2
2



14
14
14
7
The GCF of 4 and 14 is 2, so we divide by 2 to
reduce.
6
8
3
11


9
9
9
This is an improper fraction (the top is bigger
than the bottom), so we want to change it to a
mixed number.
To do this, divide the bottom into the top.
1
Answer
1
2
9
11
9
9
2
7
Try Some
7
5
1

6
12
12
4
1
5


7
7
7
1
12
1
8


15
3
15
8
Homework Time!
Write a Comment
User Comments (0)
About PowerShow.com