To represent the ratio of olives to pepperonis, you can compare the quantity of each ingredient.
Francis has:
- 20 olives in the can
- 25 pepperonis in the package
The ratio of olives to pepperonis can be written as:
\[ \text{Ratio of olives to pepperonis} = \frac{\text{Number of olives}}{\text{Number of pepperonis}} = \frac{20}{25} \]
This ratio can be simplified by dividing both numbers by their greatest common divisor, which is 5:
\[ \frac{20 \div 5}{25 \div 5} = \frac{4}{5} \]
Thus, the ratio of olives to pepperonis is 4:5.