Question

What is the perimeter of a rectangle with a length of 4 1/4 inches and a width of 2 5/6 inches?

Answer 1

I'm fairly sure it's C - even as a prediction, if you add (4x2) and (2x2) it's 12 - and the closest is thirteen, adding on the fractions.

Answer 2

D
4 1/4 + 4 1/4 + 2 5/6 + 2 5/6 = 8 1/2 + 2 5/6.
8 1/2 + 2 5/6 = 17/2 + 17/6.
17/2 + 17/6 = 51/6 + 17/6.
51/6 + 17/6 = 68/6. 
68/6 = 14 1/6th.