What is $\frac{1}{2}+\frac{1}{4}+\frac{1}{8}$ is equal to?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is $\frac{1}{2}+\frac{1}{4}+\frac{1}{8}$ is equal to?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{7}{8}
What is $\frac{1}{2}+\frac{1}{4}+\frac{1}{8}$ is equal to?
train