# Area of a rectangle.

What is the area of a rectangle that measures 4/10 x 4Ft. My grandson's teacher says the answer is squared = 1 2/5 squared

• It would help to be clear about the units of measurement. Both sides of the rectangle should have "length". – hardmath May 17 '16 at 2:00
• Also is 1 2/5 supposed to be a mixed number? – jgon May 17 '16 at 2:04

$\frac{4*4}{10} = \frac{16}{10} = \frac{8}{5} = 1 \frac{3}{5}$
$1 \frac{3}{5}$ $ft^2$ is the correct answer.