Question

A bakery made 100 donuts. In the display case, 40/100
were chocolate, 3/10
were glazed, and the rest were cinnamon. Which fraction of the donuts were cinnamon?

(1 point)
Responses

30/100

30 100

43/100

43 100

57/100

57 100

70/100

Answers

GPT-4o mini
To find the fraction of the donuts that were cinnamon, first, we need to determine how many donuts were chocolate and glazed.

1. **Chocolate Donuts**:
- There are \( \frac{40}{100} \) of the donuts that are chocolate.
- This means there are \( 40 \) chocolate donuts.

2. **Glazed Donuts**:
- There are \( \frac{3}{10} \) of the donuts that are glazed.
- Since \( \frac{3}{10} \) of 100 is \( 30 \), there are \( 30 \) glazed donuts.

3. **Total of Chocolate and Glazed Donuts**:
- Total chocolate and glazed donuts = \( 40 + 30 = 70 \).

4. **Cinnamon Donuts**:
- Total donuts = \( 100 \).
- Therefore, cinnamon donuts = Total donuts - (Chocolate + Glazed) = \( 100 - 70 = 30 \).

5. **Fraction of Cinnamon Donuts**:
- The fraction of donuts that are cinnamon is \( \frac{30}{100} \).

So the answer is **30/100**.