Add the given fractions by finding the common denominator.
The common denominator of 3 and 4 is 12.
1/4 = 3/12
1/3 = 4/12
Now you can add them together: 3/12 + 4/12 = 7/12
Now subtract that from 1 to find the rest of the budget:
1 - 7/12 = 5/12
5/12 is left.