How to fix: "unsupported operand type(s) for /: 'tuple' and 'int' "

This is the piece of code where I have the problem occuring:

def gpa_calc(grade):
 grades = []
 honors = []
 aps = []
 totalgpa = 0.00
 classes = int(raw_input("How many classes are you taking this year?"))
 for i in range(classes):
   grade = bool(raw_input("What is the grade letter of this class?(Ex. 
A+,D-,C)"))
   grades.append(grade)
   honor = bool(raw_input("Is this an honor class?(True or False)"))
   honors.append(honor)
   ap = bool(raw_input("Is this an ap class?(True or False)"))
   aps.append(ap)

   for i in range(classes):
     totalgpa = (grades[i],honors[i],aps[i])
   finalgpa = totalgpa / classes
   print ("Your final GPA is ", finalgpa, ".")

this is the error that occurs:

 50   for i in range(classes):
 51     totalgpa = (grades[i],honors[i],aps[i])
---> 52   finalgpa = totalgpa / classes
 53   print ("Your final GPA is ", finalgpa, ".")

TypeError: unsupported operand type(s) for /: 'tuple' and 'int' 

How do I fix this? Thank you in advance :D