Adding hours and minutes from a time card is not like adding decimals. For example, 1:30 + 1:30 does not equal 2.60... it equals 3:00 (3hrs 00m).
So if you want to add them like decimals, convert the minutes to hundredths of a minute. With the example above, if we convert 1:30 to hundredths we get get 1.50, then our calculation becomes 1.50 + 1.50 equaling 3.00.
That will make adding time a lot easier.
Keep in mind decimals are not always exact. For example .50 hundredths is exactly 30 minutes. However .48 hundredths is not exactly 29 minutes. It's rounded from 0.48333333.
So if you want to add them like decimals, convert the minutes to hundredths of a minute. With the example above, if we convert 1:30 to hundredths we get get 1.50, then our calculation becomes 1.50 + 1.50 equaling 3.00.
That will make adding time a lot easier.
Keep in mind decimals are not always exact. For example .50 hundredths is exactly 30 minutes. However .48 hundredths is not exactly 29 minutes. It's rounded from 0.48333333.
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