JoJo had 1 1/2 cups of sugar. She used 3/4

Question

cup for her cookies. How much does she have left?

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(1 point)
Responses

1 1/4 cups
1 and 1 fourth cups

2 1/4 cup
2 and 1 fourth cup

3/4 cup
3 fourths cup

2/4 cup

Answer 1

To find out how much sugar JoJo has left after using 3/4 cup from her original 1 1/2 cups, we can perform the subtraction as follows:

1. Convert 1 1/2 cups to an improper fraction:

   • 1 1/2 can be converted to an improper fraction: \[ 1 \times 2 + 1 = 2 + 1 = 3 \text{ (the numerator)} \] So, \(1 \frac{1}{2} = \frac{3}{2}\).

2. Set up the subtraction:

   • She used \( \frac{3}{4} \) cup, so we are calculating: \[ \frac{3}{2} - \frac{3}{4} \]

3. Find a common denominator:

   • The least common denominator of 2 and 4 is 4. Convert \( \frac{3}{2} \) to a fraction with a denominator of 4: \[ \frac{3}{2} = \frac{3 \times 2}{2 \times 2} = \frac{6}{4} \]

4. Perform the subtraction: \[ \frac{6}{4} - \frac{3}{4} = \frac{6 - 3}{4} = \frac{3}{4} \]

So, JoJo has \( \frac{3}{4} \) cups of sugar left.

Response: 3/4 cup or 3 fourths cup.