SOLUTION: How is this solved: 3(a-b) over 9 + 4 over 9 b
Over signifying a fraction bar and the "b" being attached to 4 over 9 fraction.
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Over signifying a fraction bar and the "b" being attached to 4 over 9 fraction.
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Question 494187: How is this solved: 3(a-b) over 9 + 4 over 9 b
Over signifying a fraction bar and the "b" being attached to 4 over 9 fraction. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! [3(a-b)/9] + [4 / (9b)]
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least common denominator: 9b
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Write each fraction over the lcd:
[3b(a-b)/9b] + [4 / (9b)]
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Combine the numerators over the lcd:
[3ab - 3b^2 + 4]/(9b)
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[3b^2-3ab-4]/(-9b)
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Cheers,
Stan H.
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