SOLUTION: Can you help me solve the following problem. It has to be answered in the lowest terms. One task took 7 minutes (min), a second task took 12 minutes, and a third task took 2

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Question 38595: Can you help me solve the following problem. It has to be answered in the lowest terms.
One task took 7 minutes (min), a second task took 12 minutes, and a third task took 21 min. How long did the three tasks take, as a fraction of an hour?
Found 2 solutions by lyra, rapaljer:
Answer by lyra(94) About Me  (Show Source):
You can put this solution on YOUR website!
add the tasks: 7%2B12%2B21=40
To find the fraction of an hour: 40%2F60=2%2F3
So the answer is two thirds of an hour.

Hope this helps and feel free to contact me with further questions,
lyra


Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Add the minutes together to find the total time: 7 +12+21= 40 minutes. Now convert this to hours, by dividing by 60 minutes in 1 hour. The result is 40%2F60=2%2F3 hour.

R^2 at SCC