The reason there are 60 minutes in an hour is due to ancient mathematics of the Babylonians, Sumerians, and Egyptians, and the structure of the human hand. Sumerians counted to 12
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There are 1,440 minutes in a full 24 hour day.
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1. Write the hours and minutes to be added, grouping hours with hours and minutes with minutes. For example, if adding 2 hours 43 minutes and 1 hour 50 minutes, group 2 hours from
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