Question

5 a rectangular plot of land is 1\frac{1}{2} miles wide by 2\frac{4}{5} miles long. what is its area?

Explanation:

Step1: Convert mixed - numbers to improper fractions

$1\frac{1}{2}=\frac{1\times2 + 1}{2}=\frac{3}{2}$; $2\frac{4}{5}=\frac{2\times5+4}{5}=\frac{14}{5}$

Step2: Calculate the area of the rectangle

The area formula of a rectangle is $A = l\times w$, where $l$ is the length and $w$ is the width. So $A=\frac{3}{2}\times\frac{14}{5}=\frac{3\times14}{2\times5}=\frac{42}{10} = 4.2$ square miles

Answer:

$4.2$ square miles