Calculate the Ratio: Comparing Number of Fingers to Toes

To solve this problem, we'll follow these steps:

• Step 1: Identify the number of fingers, which is typically 10.
• Step 2: Identify the number of toes, which is also typically 10.
• Step 3: Write the ratio of fingers to toes.
• Step 4: Simplify the ratio.

Now, let's work through each step:
Step 1: The typical number of fingers on a human is $10$.
Step 2: The typical number of toes on a human is $10$.
Step 3: The ratio of fingers to toes is $10:10$.
Step 4: Simplifying this ratio $10:10$ gives us $1:1$.

Therefore, the solution to the problem is $1:1$, which corresponds to answer choice 4.