Download presentation

1
**Solving Fraction Equations by Multiplying**

Lesson 5-5

2
**If the variable is in the fraction…**

When the variable is the numerator of the fraction, then it suggests a division problem. To solve a division problem, the inverse operation is multiplying.

3
**y 20 = 8 Example This equation reads “y divided by 8 equals 20.”**

The opposite of dividing by 8 is multiplying by 8. Multiply both sides by 8.

4
y 1 8 20 8 = 8 1 1 y 160 = 1 y = 160

5
Example 2 m 1 2 3 2 = 1 2 1 m = 6 1 m 6 =

6
**Check answers in the original equation.**

m = 3 2 6 = 3 2 = 3 3

7
**If the variable is being multiplied by a fraction…**

To isolate a variable that is being multiplied by a fraction, multiply by the reciprocal. Perform the same operation on the other side of the equation.

8
Example 5 3 2 1 1 3 10 r = 1 2 1 3 2 1 1 15 1 r = 1 r 15 =

9
Homework Time

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google