Question 436084
 john completed 2 thirds of his project on monday and 3 fifths on tuesday . how much of his project has john completed so far ?
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Ans: (2/3) + (3/5) 
lcd = 15
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Rewrite each fraction with the lcd as its denominator:
(10/lcd) + (9/lcd)
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Combine the numerators over the lcd:
19/lcd
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Ans: 19/15
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cheers,
Stan H.