
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
Marcus received several coins from his uncle. On his way home, he lost half of these coins. Later, by revisiting his path, he found exactly three-fourths of the coins he had initially lost. What fraction of the original number of coins is still missing after Marcus's search? Express your answer as a common fraction.

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