Solving Equations with Fractions

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Geometry: To find the area of a rectangle, multiply the length and width. Write an equation to find the area of a rectangle  3 3/5 feet long and 2 1/6 feet wide. Ten find the area in square feet.

Sep 14th, 2015

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We are given that the L=3 3/5 and W=2 1/6.

The best thing to do, is to turn the mixed numbers into simple fractions. You can do this by doing

(coefficient x denominator + numerator)/ denominator.

L=3 x 5+3=18/5

W=2 x 6+1=13/6

Now multiply these two numbers (since we are multiplying, we do not need to worry about common denominators)

18/5 x 13/6=234/30 (simplify)

234/30=39/5 sq ft

Let's turn this back into a mixed number.

5 goes into 39,  7 times

39-35=4

So our mixed number is 7 4/5

Therefore that is our answer.

Area of the rectangle= 7 4/5 square ft.




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Sep 14th, 2015

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