Question

How to find the Lowest Common Denominator?

Answer 1

Do you have any example?

Answer 2

Gotta solve 1/4 + 2/3

Answer 3

In this case, the denominators 4 and 3 do not have any common factors. So the LCD is simply the product of the two given denominators: LCD=4*3=12.

In order to add the fractions, you will have to mutliply the first denominator by 3 in order to make it the LCD, and you will have to multiply the second denominator by 4. However, you don't want to change the value of the fractions so you can only multiply each by 1. So you have to multiply the corresponding numerators by the same value, ie, you multiply the first fraction by 3/3 and the second fraction by 4/4. here's what it looks like:\[\frac{1}{4}+\frac{2}{3}=\frac{1}{4}*\frac{3}{3}+\frac{2}{3}*\frac{4}{4}=\frac{3}{12}+\frac{8}{12}\]Now that you have the common denominators you simply add the numerators:\[=\frac{3+8}{12}=\frac{11}{12}\]

Answer 4

thank you so much!

Answer 5

:)