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?

Question

(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?

Answer 1

The problem is really "what is the total of the two meat components" and this requires adding two fractions.

 

for that, you need the LEAST COMMON DENOMINATOR. Individual denominators are 4 and 6, and the LCM of those numbers is 12, i.e. 4 goes into 12 evenly, and 6 goes into 12 evenly. Twelve becomes the LCM of the two fractions.

 

Change 3/4 to 9/12 (by multiplying both parts of the fraction by 3); change 5/6 to 10/12 (by multiplying both parts of the fraction by two.  We now have 9/12 + 10/12 = 19/12 -- we add numerators only when the denominators are identical.

 

The final answer is 1 and 7/12 lbs.

Answer 2

He should use 12 as his LCM.