
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
Calculate (letters represent positive numbers)  
(1) $(4a^2b^{ \frac {2}{3}})(-2a^{ \frac {1}{3}}b^{ -\frac {2}{3}})÷(-b^{ -\frac {1}{2}})$;  
(2) $\sqrt {6 \frac {1}{4}} - 33 \frac {3}{8} - (\sqrt {2} -1)^0 + (-1)^{2016} + 2^{-1}$.

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