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21 February, 14:28

To add 3 dollars and 35 cents to 5 dollars and 78 cents, write each amount as a decimal. Since 3.35 + 5.78=9.13, the total is 9 dollars and 13 cents. Can you add 2 hours 45 minutes to 3 hours 57 minutes by using decimal numbers (2.45 + 3.57) ? Explain your reasoning.

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  1. 21 February, 14:50
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    6.42 ... or 6 hours and 42 minutes ...

    Because 45 minutes plus 57 minutes is 102 minutes with 60 minutes as a whole.
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Home » Mathematics » To add 3 dollars and 35 cents to 5 dollars and 78 cents, write each amount as a decimal. Since 3.35 + 5.78=9.13, the total is 9 dollars and 13 cents. Can you add 2 hours 45 minutes to 3 hours 57 minutes by using decimal numbers (2.45 + 3.
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