Respuesta :

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.