50 percent.
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30 out of 60 is 50%
Divide by 60.Example:30/60 = 0.5Meaning that 30 minutes is 0.5 hours.
1 hour is 60 minutes. 60 minutes + 30 minutes = 90 minutes
18 out of 30 as a percentage is 60%.
You basically have to make an equality between two fractions. First, your percentage fraction will always be a variable over 100. The other fraction, your minutes, will be a variable over 60, because a whole hour is 60 minutes. If you know the percent variable, lets say you want to figure out what 30% of an hour is, you put 30 over 100 = x over 60. You cross multiply, 30 times 60, which equals 1800, then to find out what x (your minutes) variable equals, you will have to divide 100 into 1800, which will give you 18. THerefore, 30 percent of an hour is 18 minutes.