The total number of cookies needed for the bake sale is 8 1/2 dozen. Two of your friends will bake 1/4 of the cookies your sister will bake 1/8 of the cookies. what fraction of the cookie do you need to bake?

Answer:The fraction of cookies I need to bake is 5/8Step-by-step explanation:1. Let's check all the information given to answer the question properly:Total number of cookies needed for the bake sale = 8 1/2 dozenTwo friends will bake 1/4 of the cookiesSister will bake 1/8 of the cookies2. What fraction of the cookies do you need to bake?Let's find the fraction of the cookies I need to bake:1 - 1/4 - 1/8We can write 1 as 4/4 or 8/8 for finding the lowest common denominator8/8 - 2/8 - 1/8 (8 - 2 - 1)/8 = 5/8The fraction of cookies I need to bake is 5/8