What is the perimeter of a rectangle with a length 5 2.3 inches and a width of 3 3/5 inches?

A.
17 1/4 inches


B.
18 8/15 inches


C.
9 4/15 inches


D.
8 2/8 inches

Respuesta :

The perimiter is 16....
Assuming that the lenght is 5 and 2/3 inches, you mulitply both 5 and 2/3, and 3 and 3/5 to get 34/3 and 36/5. then find a LCD and add, 

34/3 and 36/5 = 170/15 + 108/15 = 278/15

then transfer it into a mixed number, 

278/15 = 18 and 8/15 inches