How many minutes in 6 hours and 42 minutes

There are 60 minutes in an hour 60×6=360 360+42=402 so it would be 402 minutes

 Well, in 6 hours there is a total of 360 minutes. Plus the next 42 minutes then,  we will have 402 minutes as a final total. So, like we have 60 minutes in each hour we need to multiply 60 by the number of hour that is 6 and then add the next 42 minutes to get the final answer..Like this: 60 x 6 = 360 + 42 = 402.

The greatest common factor between 72 and 54 is 18.