Respuesta :
An hour has 60 minutes so 2/3 an hour is 40 minutes, if Tim practices 3/4 of this time then you just set x/40=3/4, which simplifies to x=30, meaning he played for half an hour. You could have also multiplied (2/3)*(3/4) to get 6/12 which simplifies to 1/2
Well, you would have to multiply 2/3 x 3/4 which gives you 6/12 which equals 1/2. Hope this helped you :)