Ms. Diaz has 9 1/5 pounds of modeling clay and wants to give 2/5 pounds to each of her students. Ms. Diaz has enough modeling clay for how many students?

Answer 1

The easiest way to solve this is to convert 9 1/5 to an improper fraction.

We do this by saying 9 = 9*5 fifths = 45/5, and then we add in the 1/5 we had already and we have 46/5 .

We want to give 2/5 to each student so we divide:

46/5 ÷ 2/5 = 46/5 × 5/2 = 23 (remember your Keep/Change/Flip method).