Can you add 2 hours and 45 minutes to 3 hours and 57 minutes by using decimal numbers (2.45 + 3.57)? Explain.

2.75 convert 45 min to a decimal 45/60

3.95 convert 57 min to a decimal 57/60

6.70 This would be your answer in decimal format

You could then convert back by taking .70 times 60 or 42 minutes