Making meatloaf with 3/4 pound of turkey and 5/6 pound ground beef what is LCM he should use to find the total number of pounds of meat

The LCM should be 12. 12 divided by 4 is 3. 3 times 3 is 9. 12 divided by 6 is 2. So, 2 times 5 is 10. Now add 9/12 by 10/12 to get a answer of 19/12. So convert it to a mixed number. The total number of pounds of meat is 1 and 7/12