Mike and Jennifer are preparing for a race. On Friday, Mike ran for 3 2/5 hours and Jennifer ran for 4 3/4 hours. How much longer did Jennifer run (in minutes)?
I know that
3 hours= 180 mins
4 hours = 240 mins
But I'm not sure what the fractions would be, and when I tried to do it it didn't make sense.
1 hour is 60 minutes, so
1/5 hour = 12 minutes
1/4 hour = 15 minutes
So,
3 2/5 hr = 180+24 = 204 min
4 3/4 hr = 240+45 = 285 min