The width of a rectangle is 6 2/3 inches. The length of the is twice it’s width. What so the perimeter of the rectangle?
2 answers:
L = 2*W
L = 2 * 6 2/3 = 12 + 2*2/3 = 12 + 1 1/3 = 13 1/3
P = 2 * L + 2*W
P = 2 * (13 1/3) + 2 * 6 2/3
P = 26 2/3 + 13 1/3
P = 39 + 2/3 + 1/3
P = 40
It might be easier to understand if I used decimals. Let's try that.
L = 2 * 6 2/3 = 2 * 6.666666666 = 13.333333333
W = 6.666666666
P = 2L + 2W = 2*13.33333333 + 2*6.6666666666
P = 26.66666666 + 13.33333333
P = 40
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