To determine which recipe uses the most oil, we need to compare the amounts in the same form. Let's convert each fraction to a common denominator to make the comparison easier. The common denominator for 8, 3, 5, and 7 is 840.
Now, let's convert each amount of oil:
-
Bread: \( \frac{2}{8} \) cup \[ \frac{2}{8} = \frac{2 \times 105}{8 \times 105} = \frac{210}{840} \]
-
Cookies: \( \frac{1}{3} \) cup \[ \frac{1}{3} = \frac{1 \times 280}{3 \times 280} = \frac{280}{840} \]
-
Cake: \( \frac{1}{5} \) cup \[ \frac{1}{5} = \frac{1 \times 168}{5 \times 168} = \frac{168}{840} \]
-
Pie: \( \frac{1}{7} \) cup \[ \frac{1}{7} = \frac{1 \times 120}{7 \times 120} = \frac{120}{840} \]
Now we have the following values:
- Bread: \( \frac{210}{840} \)
- Cookies: \( \frac{280}{840} \)
- Cake: \( \frac{168}{840} \)
- Pie: \( \frac{120}{840} \)
Comparing these values:
- Bread: \( 210 \)
- Cookies: \( 280 \)
- Cake: \( 168 \)
- Pie: \( 120 \)
The recipe that uses the most oil is Cookies.