Pete ate 1/2 a pizza, Carol ate 1/3, and Joe ate 1/4. How much pizza was eaten?
Total pizza eaten is:
1/2 + 1/3 + 1/4
We need a common denominator. List out factors:
2: 1, 2, 4, 6, 8, 10, 12
3: 1, 3, 6, 9, 12
4: 1, 4, 8, 12
12 is our least common multiple:
1/2 = 6/12
1/3 = 4/12
1/4 = 3/12
So our addition becomes:
(6 + 4 + 3)/12 = 13/12 of a pizza
Total pizza eaten is:
1/2 + 1/3 + 1/4
We need a common denominator. List out factors:
2: 1, 2, 4, 6, 8, 10, 12
3: 1, 3, 6, 9, 12
4: 1, 4, 8, 12
12 is our least common multiple:
1/2 = 6/12
1/3 = 4/12
1/4 = 3/12
So our addition becomes:
(6 + 4 + 3)/12 = 13/12 of a pizza