Last week christi spent 2 3/4 hours playing piano this week she spent 3 2/4 hours playing the piano how much more time did she play the piano this week

Given that l ast week christi spent 2 3/4 hours playing piano this week she spent 3 2/4 hours playing the piano, the extra time spent on piano this week will be:

3 2/4-2 3/4

Converting the above into proper fraction we get:

14/4-11/4

= (14-11) / 4

=3/4

Thus she spent and extra 3/4 hours=45 minutes this week