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# 3 1/2 + 2 1/2 + 5 1/3 + 1 2/3 =? 12 12/12? am i right?

3 1/2 + 2 1/2 + 5 1/3 + 1 2/3 =

convert all the mixed numbers to fractions

7/2 + 5/2 + 16/3 + 5/3

I first add 7/2 + 5/2 = 12/2
and then I add 16/3 + 5/3 =21/3
so now we have 12/2 + 21/3 now we find a common denominator

so now we have to find a common denominator for 12/2 + 21/3

so
2,4,6,8,10,12
3,6,9,12
12 is the closet

so we times 12/2 by 6 and 21/3 by 4

now we got 72/12 + 84/12

now we divide 12/156 = 12 12/12 am I right?

I think i made a mis calculation, i will re correct the text later.

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Posted by kayz91 Dec 3rd, 2012 at 7:37PM

12 12/12 is 13 so yes

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## 16 Answers to "3 1/2 + 2 1/2 + 5 1/3 + 1 2/3 =? 12 12/12? am i right?"

1. Posted by Dec 3rd, 2012 at 7:32PM

you are saying 3 1/2 + 2 1/2 + 5 1/3 + 1 2/3 =? 12 12/12? it should be 14 whole number

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2. Reply by Dec 3rd, 2012 at 7:41PM

LOL i know a little something :)

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3. Posted by Dec 3rd, 2012 at 7:31PM

You could just say
3+2+5+1=11
1/2+1/2=1+1/3+2/3=2
11+2=13

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4. Reply by Dec 3rd, 2012 at 7:35PM

Well 156 divided by 12 is thirteen.

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5. Posted by Dec 3rd, 2012 at 7:39PM

6 is the closest. Look at your selection for common denominators again.

12/2 x 3 = 36/6 and 21/3 x 2 = 42/6

36/6 + 42/6 = 78/6

6 into 78 goes 13 times.

13 x 6 = 78

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6. Posted by Dec 3rd, 2012 at 7:39PM

11 24/12 or 11 4/2, or 11 6/3 is also correct....

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7. Posted by Dec 3rd, 2012 at 7:37PM

It's so much simpler to just add the whole numbers and then add the fractions' sum to the whole number sum and the answer is 3+2+5+1= 11. 1/2+1/2+1plus 1/3+2/3=1 Therefore,11+ 1+1=13 or 12+12/12 which =12+1 which equals 13.

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8. Posted by Dec 3rd, 2012 at 7:36PM

I'm going to show how my mind decided to solve this:
3 1/2 + 2 1/2 + 5 1/3 + 1 2/3
(3 1/2 + 2 1/2) + (5 1/3 + 1 2/3)
(6) + (7)
7 + 6 = 13

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9. Posted by Dec 3rd, 2012 at 7:36PM

13

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10. Posted by Dec 3rd, 2012 at 7:36PM

13 is what I come up with!

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11. Posted by Dec 3rd, 2012 at 7:32PM

=13

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12. Posted by Dec 3rd, 2012 at 7:31PM

Well, 12 12/12 actually is 13...I don't know whether the answer is what you said, but I do know that 12/12 = 1and 12 + 1 = 13

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13. Posted by Dec 3rd, 2012 at 7:31PM

dont know...ran out of fingers and toes..

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14. Posted by Dec 3rd, 2012 at 7:30PM

it's 12.
in decimals, it's 3.5 + 2.5 + 6 = 12.0

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15. Posted by Dec 3rd, 2012 at 7:30PM

Yes I think that is right.

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16. Posted by Dec 3rd, 2012 at 7:29PM

yes

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17. Posted by Dec 3rd, 2012 at 7:29PM

You forgot to carry the two

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18. Reply by Dec 3rd, 2012 at 7:39PM

But the 2 is too heavy to be carried.

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