SOLUTION: add -7/11+4/13=

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Question 327533: add -7/11+4/13=
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
add
-7/11+4/13
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lcd = (11*13)
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Rewrite each fraction with
the lcd as its denominator:
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=[-7*13/lcd + [4*11/lcd]
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= [-91+44]/lcd
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= -47/143
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Cheers,
Stan H.