1 / 9

Solving Fraction Equations by Multiplying

This lesson focuses on solving fraction equations involving a variable as either a numerator or in multiplication. When a variable is the numerator, we can use multiplication to isolate it. For example, if ( y/8 = 20 ), multiplying both sides by 8 gives ( y = 160 ). If a variable is being multiplied by a fraction, we can use the reciprocal to isolate it. This lesson includes essential examples and a homework section to practice these techniques effectively.

anastacia
Télécharger la présentation

Solving Fraction Equations by Multiplying

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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. Example y 20 = 8 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 = · · 2 3 1 1 2 1 1 15 r 1 = 1 r 15 =

  9. Homework Time

More Related