2006-10-24 14:41:17 · 9 answers · asked by gloria g 1 in Science & Mathematics ➔ Mathematics
Okies well the LCM of 12 and 8 is 24.
so....multiply the numerators so the denominators are both 24
15 x 2 = 30/24
and 3 x 3 = 9/ 24
30 + 9 =39/24 = 1 15/24
Simplify, so the answer is 1 5/8.
2006-10-24 14:51:57 · answer #1 · answered by 2 days after my B day :) 2 · 1⤊ 0⤋
make 15\12 into 1 and 3\12 + 3\8 then make the denominators into like terms such as 1 & 6\24 + 9\24 which equals 1 and 15\24 but dont forget to reduce to 1 and 5\8.
2006-10-24 14:51:57 · answer #2 · answered by slipperysizzler 2 · 1⤊ 0⤋
You need a common denominator.
15/12 = 30/24
3/8 = 9/24
30/24 + 9/24 = 39/24 = 1 15/24 (divide 15 and 24 by 3) = 1 5/8
Always remember to get a common denominator!! Good luck.
2006-10-24 14:52:38 · answer #3 · answered by Ms. G. 5 · 0⤊ 0⤋
Gloria,
Notice that there are two fractions with two different denominators. See it?
1. Find the LCD...lowest common denominator.
What is the smallest number that 12 and 8 can EVENLY (without a remainder) be divided into?
How about 24?
Yes, 24 is our LCD.
We now divide our LCD by each denominator and multiply the quotient by each numerator.
24 divided by 12 = 2 times 15 = 30
Next:
24 divided by 8 = 3 times 3 = 9
We now have:
(30 + 9)/24
Add the numerators to get:
39/24...our new fraction.
Ask yourself: Can I reduce the fraction 39/24 into a lower term?
What is the BIGGEST number than evenly can fit into 39 and 24 (without a remainder)?
How about 3?
39 divided by 3 = 13
24 divided by 3 = 8
Final answer: 13/8
Guido
2006-10-24 14:57:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
13/8
2006-10-24 15:18:05 · answer #5 · answered by mike48311 1 · 0⤊ 0⤋
13/8
2006-10-24 14:49:58 · answer #6 · answered by xox_bass_player_xox 6 · 0⤊ 0⤋
15/2 + 3/8 = (120 +36)/96 = 13/8
Answer: 13/8
2006-10-24 15:01:14 · answer #7 · answered by frank 7 · 0⤊ 0⤋
Take the LCM and then
and LCM is 24
therefore
(15*2+3*3)/24
39/24
13/8 (ans)
2006-10-24 14:52:05 · answer #8 · answered by Anonymous · 0⤊ 0⤋
get LCD....24
30 + 9/24
=39/24 or 13/8 or 1 and 5/8 ANSWER
2006-10-24 15:15:52 · answer #9 · answered by thirdy i 1 · 0⤊ 0⤋