What is the visual representation of 1/8

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.

In a column proof the right column states your reasons

Could someone me with this question i’ve been stuck on it for 20 minutes