Noah is painting boxes that are all the same size. He used 2 ounces of paint to cover 1 2/3 boxes. How many ounces of paint are needed to cover 1 box? Draw a diagram to represent the situation, then find the answer.

2:1 2/3

?oz:1/3.   How many oz does it take to cover 1/3 of the box?

0.4:1/3.   0.4oz is needed to cover 1/3 of the box.

1/3*3=1.    0.4*3=1.2  *= multiplication

I believe the answer Is: 1.2oz is needed to cover 1 box. The information here should help you the diagram.

Sample Response: Each base must be treated separately. Since each base is raised to a negative exponent, they should both be in the denominator of the fractions. The simplified form of the expression has 1 in the numerator and r to the 8th power times s to the 5th power in the denominator.