A cubic block of wood with side lengths of 10 cm is cut into smaller cubes with side lengths of 1 cm. What is the ratio of the surface area of the larger block of wood to the combined surface area of the smaller blocks of wood? Express your answer as a common fraction.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A cubic block of wood with side lengths of 10 cm is cut into smaller cubes with side lengths of 1 cm. What is the ratio of the surface area of the larger block of wood to the combined surface area of the smaller blocks of wood? Express your answer as a common fraction.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{1}{10}
A cubic block of wood with side lengths of 10 cm is cut into smaller cubes with side lengths of 1 cm. What is the ratio of the surface area of the larger block of wood to the combined surface area of the smaller blocks of wood? Express your answer as a common fraction.
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