Question 781008: The area of the rectangle is 77 square feet. If its width is 5 1/4 feet, find its length. Found 2 solutions by rfer, wilft1:Answer by rfer(16322) (Show Source):
You can put this solution on YOUR website! area of a rectangle is L x W = A
L x 5 1/4 = 77
lets convert 5 1/4 to decimal, 5.25
L x 5.25 = 77
divide both sides by 5.25
L = 14.66666667
or you could keep the mixed number
L x 5 1/4 = 77
convert 5 1/4 to an improper fraction 21/4
L x 21/4 = 77
divide both sides by the reciprocal of 21/4 which is 4/21
remember, when dividing fractions, you are simply multipling the reciprocals
L x 21/4 x 4/21 = 77 x 4/21
L = 308/21 = 14 14/21
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