AceSoar R.

asked • 11/12/17

Tom is making a meatloaf with 3/4 pound of turkey and 5/6 pound of ground beef. What is the LCM he should use to find the total number of pounds of meat?

(I keep getting 15/2, but im not sure if its right or how to check that answer.
 
I'm a parent, my daughter is in 6th grade, I'm hoping to get some insight on this and also if there is any kind of free or cheap online tutoring for 6th grade?

2 Answers By Expert Tutors

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Kenneth S. answered • 11/12/17

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AceSoar R.

I understand your answer, so am I just confusing my solution method? Why do I keep thinking LCM of a fraction is LCM/HCF?
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11/12/17

Kenneth S.

i think you should concentrate on what I said & did for you. The LCM of a fraction isnt a useful concept; the LCD is.
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11/13/17

Alisha F. answered • 11/12/17

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AceSoar R.

If possible can you please explain the procedure to how you got that answer?
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11/12/17

AceSoar R.

I know the LCD is 12, but I thought the LCM of a fraction is LCM/HCF?
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11/12/17

Alisha F.

Change the fraction, three-fourths, so that its denominator is 12. For example, 3     ?
                                                                                                                  4 = 12. 
 
Then ask yourself, what # times 4 (the denominator of the fraction 3/4) will equal 12. That answer would be 3 because 4 x 3 = 12. The same number that you use to multiply 4 by to get 12, is the same number you used to multiply by the numerator. For example, the numerator of 3/4 is 3. Then you will multiply 3 x 3 = 9. 
 
3 x 3 = 9
4 x 3 = 12     
 
Then you will do the same for the fraction, 5/6.
 
5 x _ =  ?
6 x _ = 12
 
Then, you add 9/12 plus the answer you get for whatever you get using the same process I did for 3/4. 
 
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11/12/17

Alisha F.

The fraction 5/6 should equal 10/12. Then you add 9/12 + 10/12, which should = 19/12. Since the numerator is bigger than the denominator, divide 19 by 12 of which you should get 1 and 7/12 pounds.
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11/12/17

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