1(3)/(4) \ hours more Sonia study than James. Step-by-step explanation: Given: Sonia studied for 2 1/3 hours for the math test james studied 3/4 as long as Sonia. Now, to find hours more Sonia study than james. Sonia studied = (7)/(3) \ hours. James studied = (3)/(4) \ hour. Now, to get the more hours Sonia study than James we subtract the hour James studied from hours Sonia studied: (7)/(3) -(3)/(4) =(28-9)/(12) =(21)/(12) =(7)/(4) =1(3)/(4)\ hours. Therefore, 1(3)/(4) \ hours more Sonia study than James.