Question

keith had 81/2 cups of flour. he used 52/3 cups to make bread. how many cups of flour does keith have left?

Answer 1

81/2  -  52/3 change the denomenator to 6
243/6  -  104/6  =139/6
 If they ask the answer in mixed number its 23 1/6  so 23 as the whole number and 1 over 6