What is the missing number (?) on the number line below? 
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What is the missing number (?) on the number line below? 
Let's first count how many points, including the number 1, there are on the number line.
Since there are 11 in total, we'll define the 0 point as the following fraction:
We will also define 1 as the following fraction:
Now let's fill in each point on the sequence to discover what our missing number is:
Without calculating, determine whether the quotient in the division exercise is less than 1 or not:
\( 5:6= \)
Count the total number of equal divisions between 0 and 1. In this problem, there are 11 equal parts total, so the denominator is 11.
The question mark is at the 10th division point from 0. Count carefully: 0 is the starting point, then count each mark until you reach the ?. You should count 10 steps.
Ask yourself: Is my fraction close to 1 but still less than 1? Since is very close to , this makes sense for the position shown.
Look for the pattern of equal spacing. Count the marks you can see clearly, then use that spacing to determine the total number of divisions between 0 and 1.
No! is already in simplest form because 10 and 11 share no common factors other than 1.
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