0
(3/4) + (7/12):
you need to have both denominators the same, before you can add the numerators.
the LCD is 12, if you multiply (3/4) by 1, then it's value does not change.
Three-thirds (3/3) is equal to 1, so
3 3
-*- = (3*3) {multiply the numerators}/ (4*3) {multiply the denominators}= 9/12
4 3
so replace (3/4) above with (9/12) since they have the same value, and:
(9/12) + (7/12) =
9 + 7
------- = 16/12
12
This simplifies to 4/3, which is an improper fraction.
Think of it as (3 + 1)/3 = (3/3) + 1/3 = 1 + 1/3 or 1 1/3
Still curious? Ask our experts.
Chat with our AI personalities
Ross
Beau
BlakeAdd your answer:
Earn +20 pts
What is three twelfths plus four twelfths?
Seven-twelfths
What does three twelfths the plus three fourths equal?
To add three twelfths to three fourths, we first need to find a common denominator. The least common multiple of 12 and 4 is 12. Converting three fourths to nine twelfths, we can now add three twelfths to nine twelfths to get twelve twelfths, which simplifies to one whole. Therefore, three twelfths plus three fourths equals one whole.
What is one half plus two thirds plus three fourths?
1/2 = 6/122/3 = 8/123/4 = 9/12 (generally called quarters not fourths)(6+8+9)/1223/12one and eleven twelfths, or twenty-three twelfths
What is seven twelfths plus one fourths?
5 0ver 6 I always hated these questions in Algebra. But they're pretty simple, if you can make the two parts more equal. Since Twelfths and Fourths are different, you have to get them to be the same. It's easier to convert 4ths to 12ths, since Four Goes Into 12 Three times - so ONE FOURTH is the same as THREE TWELFTHS, right? That's the tricky part, right there - being able to see the relationship between FOURTHs and TWELFTHs. So 7/12ths plus 3/12ths is 10/12ths, right? Which is the same as 5/6ths. The first answerer didn't tell you HOW he got the answer, so you were no better off in case it came up again.
What is three twelfths plus five twelfths?
8/12, or 2/3
