Download presentation

Presentation is loading. Please wait.

Published byAshton Womble Modified over 3 years ago

1
How to find the LCM of two or more numbers (or expressions) Ex: Find the LCM for 40, 30, 36 40 = 23 23 3 30 = 2 35 36 = 2 2 3232 For 2 we select 2323 For 3 we select 3232 For 5 we select 5151 LCM = 2 3 3 2 5 1) For of each number (or expression) get the prime decomposition 2) For each factor in the decompositions select the one with maximum exponent 3) The product of all Answer: LCM = 360

2
Find the LCM for 6x-6, 4x 2 -4, x 2 +2x-3 First get the prime factorization for each polynomial 6x - 6 = 6(x -1) = 2·3 (x -1) 4x 2 - 4 = 4(x 2 -1) = 2 (x +1) (x -1) x 2 + 2x - 3 = 3 (x – 1) (x +1) ( x +3) For 2 we select 2 For 3 we select 3 For x we select x For x +1 we select x +1 For x +3 we select x +3 LCM = 2 2 (3)(x – 1) (x +1) ( x +3) Answer: LCM = 12 (x –1)(x +1)( x +3)

3
We need to find the LCD (LCM for the denominator ) Since 9 = 3232 8 = 2323 24 = 23 23 ·3 So the LCD = 23 23 · 32 32 = 8·9 = 72 Rewriting the fraction with denominator 72 … Find the value of Adding Fractions

Similar presentations

Presentation is loading. Please wait....

OK

Chapter 2 Fractions.

Chapter 2 Fractions.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on market friendly state political cartoon Download ppt on world trade organization Ppt on job evaluation compensable factors Ppt on trans-siberian railway cost Ppt on pi in maths cheating Autonomic nervous system anatomy and physiology ppt on cells Ppt on environmental protection act View my ppt online reader Ppt on combination of resistances Ppt on marketing management for mba