Expressed as a decimal fraction, this is equal to 3.3 recurring (that is, 3.333..) hours.
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8 hours and 20 minutes = 8 + 20/60 hours = 81/3 hours = 8.33... recurring hours.
To write seven and a half hours, you can express it as 7.5 hours or as 7 hours and 30 minutes. This is a decimal representation of time where the whole number represents the hours and the decimal represents the fraction of an hour in terms of minutes. It is a common way to express time in a more precise and standardized format.
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To write 7 hours 10 minutes as a fraction, you first convert the 7 hours to minutes, which is 420 minutes (7 hours x 60 minutes). Then, you add the 10 minutes to get a total of 430 minutes. Finally, you can express 7 hours 10 minutes as the fraction 430/60, which simplifies to 43/6 in its lowest terms.
You would write 11 cents as $0.11 or $.11 in decimal form.