Download presentation

1
**Finding a Common Denominator**

: 3, 6, 9, 12, 15, 18… 1 3 3 : 2 5, 10, 15, 20, 25, 30… Now you have found the LCM. 5 5 First you need to find the LCM. Now you need to list the multiples for each number.

2
**Finding a Common Denominator**

Time to add the fractions. 15 1 X 5 = 5 3 X 5 = 2 X 3 = 6 15 Your LCM is now your CD for the addition Problem. 5 X 3 = Use the factor that brought you to your multiple on the numerator. Multiple across to find your new equivalent fraction. Now apply the same rule for the bottom fraction.

3
**Finding a Common Denominator**

It doesn’t get any easier than that. The denominator will be the same. Use addition on the numerators. 1 X 5 = 5 3 X 5 = 15 2 X 3 = 6 5 X 3 = 15 11 15

Similar presentations

© 2020 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