
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
You have a whole pizza in the refrigerator. On your first trip to the refrigerator, you and your friend each eat a quarter of the pizza. On each successive trip, both of you eat half of the previous amount each of you ate. After four trips to the refrigerator, what fractional part of the pizza have you together eaten?

Present the answer in LaTex format: \boxed{Your answer}
user