Question

JoJo had 1 1/2 cups of sugar. She used 3/4 cup for her cookies. How much does she have left? (Desmos Calculator: Ctrl + select to open in a new tab) (1 point) Responses 3/4 cup 1 1/4 cups 2/4 cup 2 1/4 cup

Answer 1

To find out how much sugar JoJo has left after using some for her cookies, we need to subtract the amount of sugar she used from the total amount she initially had.

1. **Initial amount of sugar:** \( 1 \frac{1}{2} \) cups, which can be converted to an improper fraction:
\[
1 \frac{1}{2} = \frac{3}{2}
\]

2. **Amount of sugar used:** \( \frac{3}{4} \) cups.

3. **Subtract the amount used from the initial amount:**
\[
\frac{3}{2} - \frac{3}{4}
\]

To subtract these fractions, we need a common denominator. The least common denominator of 2 and 4 is 4.

4. **Convert \( \frac{3}{2} \) to have a denominator of 4:**
\[
\frac{3}{2} = \frac{3 \times 2}{2 \times 2} = \frac{6}{4}
\]

5. **Now subtract the fractions:**
\[
\frac{6}{4} - \frac{3}{4} = \frac{6 - 3}{4} = \frac{3}{4}
\]

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

The answer is **3/4 cup**.