1 / 16

ADDING AND SUBTRACTING FRACTIONS

ADDING AND SUBTRACTING FRACTIONS. Objective:- to learn to add and subtract fractions. Num/Den. Numerator. REMEMBER:. Denominator. Addition/Subtraction of Fractions. Same Den. Adding and subtracting simple fractions. 7 – 3. 4. –. 8. 8. 3. 1. 7. 2. 8. 8. 1. =. =. =. 2.

quincy-joseph
Download Presentation

ADDING AND SUBTRACTING FRACTIONS

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. ADDING AND SUBTRACTING FRACTIONS Objective:- to learn to add and subtract fractions

  2. Num/Den Numerator REMEMBER: Denominator Addition/Subtraction of Fractions

  3. Same Den

  4. Adding and subtracting simple fractions 7 – 3 4 – 8 8 3 1 7 2 8 8 1 = = = 2 We can show this calculation in a diagram: – =

  5. 9 18 4 7 14 2 - - + = + = = = 11 16 11 16 11 16 11 15 5 2 3 4 19 19 19 7 7 7 Adding / Subtracting Fractions • Adding / Subtracting with same denominator • Only Add / Subtract the numerators, the denominators stay the same.

  6. Adding and subtracting simple fractions with different denominators 1 1 3 4 4 4 1 1 2 2 What is + ? + = + =

  7. Adding and subtracting simple fractions 3 3 1 8 8 8 1 1 2 2 What is – ? – = – =

  8. Adding and subtracting simple fractions with different denominators

  9. + Equivalent Multiples of 3 and 4 Equivalent 3 4 6 8 9 12 12 16 15 20 12 is the LCM + Diagram 1 + =

  10. - Diagram 1 - Equivalent Multiples of 3 and 4 Equivalent 3 4 6 8 9 12 12 16 15 20 12 is the LCM - =

  11. + Diagram 3 + Equivalent Multiples of 4 and 6 Equivalent 4 6 8 12 12 18 16 24 20 30 12 is the LCM + =

  12. - Equivalent Multiples of 3 and 4 Equivalent 3 4 6 8 9 12 12 16 15 20 12 is the LCM - =

  13. -Diagram 3 - Equivalent Multiples of 4 and 6 Equivalent 4 6 8 12 12 18 16 24 20 30 12 is the LCM - =

More Related