What is the volume of a rectangular prism with a length of 4 2/3 ft., a height of 3 1/3ft., and a width of 2 1/2ft.? Write your answer as a mixed number or improper fraction.(1 point)

1 answer

To find the volume of a rectangular prism, you can use the formula:

\[ \text{Volume} = \text{length} \times \text{height} \times \text{width} \]

First, convert the mixed numbers to improper fractions:

  1. For the length \(4 \frac{2}{3}\): \[ 4 \frac{2}{3} = \frac{4 \times 3 + 2}{3} = \frac{12 + 2}{3} = \frac{14}{3} \]

  2. For the height \(3 \frac{1}{3}\): \[ 3 \frac{1}{3} = \frac{3 \times 3 + 1}{3} = \frac{9 + 1}{3} = \frac{10}{3} \]

  3. For the width \(2 \frac{1}{2}\): \[ 2 \frac{1}{2} = \frac{2 \times 2 + 1}{2} = \frac{4 + 1}{2} = \frac{5}{2} \]

Now substituting these values into the volume formula:

\[ \text{Volume} = \frac{14}{3} \times \frac{10}{3} \times \frac{5}{2} \]

First, multiply the numerators:

\[ 14 \times 10 \times 5 = 700 \]

Then, multiply the denominators:

\[ 3 \times 3 \times 2 = 18 \]

Now combine these:

\[ \text{Volume} = \frac{700}{18} \]

Next, simplify the fraction. Both 700 and 18 can be divided by 2:

\[ \frac{700 \div 2}{18 \div 2} = \frac{350}{9} \]

Now convert \(\frac{350}{9}\) into a mixed number. Divide 350 by 9:

\[ 350 \div 9 = 38 \quad \text{(whole number)}, \quad \text{remainder} = 350 - (9 \times 38) = 350 - 342 = 8 \]

Thus, we can express \(\frac{350}{9}\) as:

\[ 38 \frac{8}{9} \]

Therefore, the volume of the rectangular prism is:

\[ \boxed{\frac{350}{9}} \text{ or } \boxed{38 \frac{8}{9}} \text{ ft}^3 \]