I am getting the error message of ' File "python", line 30

grade = 0.1 * average(student['homework']) +/ 0.3 * average(student['quizzes']) + 0.6 * average(student['tests'])

^

SyntaxError: invalid syntax' for this code. I don't know what I'm doing wrong. Anybody care to explain?

```
lloyd = {
"name": "Lloyd",
"homework": [90.0, 97.0, 75.0, 92.0],
"quizzes": [88.0, 40.0, 94.0],
"tests": [75.0, 90.0]
}
alice = {
"name": "Alice",
"homework": [100.0, 92.0, 98.0, 100.0],
"quizzes": [82.0, 83.0, 91.0],
"tests": [89.0, 97.0]
}
tyler = {
"name": "Tyler",
"homework": [0.0, 87.0, 75.0, 22.0],
"quizzes": [0.0, 75.0, 78.0],
"tests": [100.0, 100.0]
}
# Add your function below!
def average(numbers):
total = sum(numbers)
total = float(total)
total = float(total) / len(numbers)
return total
def get_average(student):
homework = average(student['homework'])
quizzes = average(student['quizzes'])
tests = average(student['tests'])
grade = 0.1 * average(student['homework']) +/ 0.3 * average(student['quizzes']) + 0.6 * average(student['tests'])
return grade
0.6 * average(student['tests'])
```