Final answer:
Joan drank a total of 13/12 cups of milk, which is equal to 1 1/12 cups. This was calculated by finding a common denominator for 3/4 and 1/3, converting them to 9/12 and 4/12 respectively, and then adding them together.
Step-by-step explanation:
The student asked how many cups of milk Joan drank in total if she drank 3/4 of a cup of milk at breakfast and 1/3 of a cup of milk at dinner. To find the total amount Joan drank, we need to add these two fractions together. The calculation involves finding a common denominator and then adding the numerators. The least common denominator for 4 and 3 is 12, so we convert our fractions:
3/4 x 3/3 = 9/12
1/3 x 4/4 = 4/12
Now that the fractions have the same denominator, we can add them:
9/12 + 4/12 = 13/12
Therefore, Joan drank 13/12 cups of milk in total which is equivalent to 1 1/12 cups of milk.
To find out how many cups of milk Joan drank in total, we need to add together the amounts she drank at breakfast and dinner. First, we add 3/4 of a cup and 1/3 of a cup to find the combined amount:
3/4 + 1/3 = 9/12 + 4/12 = 13/12 cups
Since 13/12 is an improper fraction, we need to simplify it. We can simplify it by dividing the numerator (13) by the denominator (12):
13 ÷ 12 = 1 (with a remainder of 1)
So the final answer is 1 cup and 1/12 of a cup. Therefore, Joan drank a total of 1 and 1/12 cups of milk.