Question

What is the perimeter of the rectangle with sides 5`1/3` in and 10`1/6`in?

Answer 1

31 inches, or 78.54 cm

Explanation:

1. Convert mixed fractions to improper fractions
   I figured out that if you multiply the coefficient by the denominator, and add the numerator, and slap that result over the original denominator, you'll get an equivalent improper fraction

`5 1/3 => 16/3`

`10 1/6 => 61/6`

1. Add the two side lengths together (make common denominators first)

`32/6 + 61/6 = 31/2`

1. Then multiply that by 2 since there's four sides on a rectangle

`31/2 * 2 = 31" inches"`

If you want centimetres, then multiply the inches by `(2.54 " cm" )/ (1" inch")` to get a measurement of `78.74` cm