One thing that I do to help me with home work is to buy m&ms or your favorite candy/snack and then when your done with a question or however you want to split it up eat a piece. If you are doing virtual school when you wake up get dressed, make your bed, eat breakfast, and prepare a bag of all of you schoolwork, like you would on a regular day. after every class take a 5 min. break and walk around.
If you are struggling to focus on school, a good thing to do that is actually very helpful is to do a little bit of one subject then move on to another and create a pattern with your classes. For example do a little bit of history then a little bit of Spanish, then a little bit of the next class and etc. Continue doing that until all your assignments are done.
(2/5) of (2/3) of students = 4/15 of students study French. Then 1-(4/15) = 11/15 of students do not study French. The ratio you want is (4/15):(11/15) = 4:11