## rainbowink 3 years ago 3/4 + 5/6

1. geoffb

To add fractions, you need a common denominator.

2. arisauotani

you need a common denominator first.

3. arisauotani

then after that everything will just be adding.

4. funinabox

create a common denominator, then add together look for a number that both 4 and 6 divide into protip: multiply 4 and 6 together, and start there

5. rainbowink

im not getting the correct answer??

Find The LCD (Least Common Denominator) Example: 4, 8, (12), 16 6, (12), 18 In This Case The LCD Is 12. Then, Since 4 Is Multiplied By 3, You Will Multiply 3 x 3 And Since 6 Is Multiplied By 2 It Will Be 5 x 2 To Get The Numerator.

7. rainbowink

nope stilll not getting the answer bye doing that??

8. geoffb

Can you write out your new equation with a common denominator?

9. funinabox

for instance, 3/4 = 9/12, right? multiply 3 and 4 by 3. 3*3 = 9 4*3 = 12 therefore, 9/12 5/6, to make this over 12 you have to multiply by 2 10/12 so you now have 9/12 + 10/12

10. pathosdebater

3/4 + 5/6 6*4 = 24 (new denominator) 3 * 6 = 18 5*4 = 20 18/24 + 20/24 = 38/24 = 19/12

11. rainbowink

12. funinabox

the answer is 19/12 though, unless we are misinterpreting the question?

13. geoffb

What about 1 7/12? Is that an option?

14. pathosdebater

15. pathosdebater

1.583^_

16. rainbowink

2/10, 1 5/9 , 1 7/12 , 8/10

17. pathosdebater

1 7/12

18. funinabox

1 and 7/12 then reason being, if you have 19/12 that is 12/12 + 7/12, or 1 + 7/12

19. pathosdebater

1 7/12 = 19/12 Subject 12 from 19 to take 1 out, which leaves 7/12ths

20. pathosdebater

Subtract*