To find the number of calories per serving when using \( \frac{1}{3} \) of a container of yogurt that contains 150 calories, and the recipe makes 4 servings, you should do the following calculations:
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Calculate the total calories from \( \frac{1}{3} \) of a container: \[ \frac{1}{3} \times 150 \]
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Then divide that total by 4 to find the calories per serving: \[ \left(\frac{1}{3} \times 150\right) \div 4 \]
In fractional terms, this can be represented as: \[ \frac{1}{3} \times 150 \div 4 \]
Thus, the correct calculation from the given options is: \[ 13 \times 150 \div 4 \]
Note: You mentioned \( \frac{1}{3} \) but referred to 13 in the above calculations. Assuming the \( \frac{1}{3} \) value for yogurt is what you wanted initially.
If we actually have 13 containers being referred to, the correct calculation to get calories per serving would actually be: \[ 13 \times 150 \div 4 \]
So, the answer is: 13 × 150 ÷ 4