math problems.

Question

acob is baking chocolate.the recipe uses 3/4 cup of sugar. jacob wants to use onehalf of a batch. how many cup of sugar does he needs.

Answer 1

So, as I understand it, the unfortunately named Acob is baking chocolate [cookies] and the full batch recipe requires 3/4 c of sugar, but Acob want only to make half a batch.

 

Therefore he will need to use only half of the 3/4 c of sugar.  "HALF OF" means multiply by ½, so our problem is to calculate ½•¾.

 

The rule is "multiply the two denominators, and multiply the two numerators, and REDUCE to lowest terms:

 

Multiplying gives us 3/8, and no reduction is possible.

 

This multiplication-of-fractions rule might be a good one to remember for a while (meaning, forever!).