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Mathematics 23 Online
OpenStudy (anonymous):

after working together for t hours on a common task. two worker have done fractional parts of the job equal to t/3 and t/5 respectively. what fractional part of the task has been completed?

OpenStudy (anonymous):

t/3 + t/5 = must get a common denominator 5t/15 + 3t/15 = 8t/15 of the job.

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