johnlangford28 3 years ago what is 3/15+12/18 in lowest terms

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1. wonderstruck

13/15

2. wonderstruck

do u want me to draw it ? i plugged it into the calculator but there is a way to do it by hand

3. shivamsinha

(1/5)+(2/3)

4. shivamsinha

=(3+10)/15=13/15

5. johnlangford28

in lowest terms

6. wonderstruck

(13/15) is the lowest terms it cant be divided by anything without getting another fraction

7. johnlangford28

no 3/15+12/18 in lowest terms

8. phi

that is what people posted up above they first said: 3/15 can be reduced to 1/5 (divide top and bottom by 3) reduce 12/18 to 2/3 (divide top and bottom by 6) add 1/5 + 2/3 common denominator is 15 can you finish?

9. johnlangford28

not really i hate fraction lol could u help me with afew please

10. phi
11. phi

In fact, watch the first few (they are all short) http://www.khanacademy.org/math/arithmetic/fractions

12. johnlangford28

what is the lcm of 6 and 9

13. phi

write 6 as 2*3 write 9 as 3*3 you need 1 two and 2 3's so 2*3*3= 18

14. johnlangford28

and thank you u was alot of help lol