Question

the width of rectangle is 6 2/3 inches.the length of the rectangle is twice its width. what is the perimeter of the rectangle?

Answer 1

Let's convert the width to an improper fraction first:
$6 \frac{2}{3} = \frac{6*3+2}{3} = \frac{20}{3}$

This means that the length is:
$\frac{20}{3}*2 = \frac{40}{3}$

The perimeter of a rectangle is:
$2(l+w)$

Plug in values, and you get:
$2( \frac{40}{3}+ \frac{20}{3}) = 2(\frac{60}{3}) = \frac{120}{3} = 40$

So, your answer is 40 in.