SOLUTION: how do i write out how i figured out the answer to 1/3+1/4+1/5 over 3 equals 47/180

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Question 702603: how do i write out how i figured out the answer to 1/3+1/4+1/5 over 3 equals 47/180
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
You are almost right. The sum is 47%2F60, not 47%2F180.
An extra 3 factor slipped into your denominator.
Mistakes like that happen to me all the time.

Since 3, 4,and 5 are relatively prime to one another (no pair of them has a single common factor),
3%2A4%2A5=60=3%2A20=4%2A15=5%2A12 is the minimum common multiple and the least common denominator