Pls someone pls help me with this question pls

What properties allow transformation to be used as a problem solving tool

5/6+7/8what is the answer sealsdbdbshd

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.