Unit Fractions on Number Lines
Consider the number line:
Let's identify the fraction represented by the dot on the given number line.
To identify the fraction, count the number of segments between 0 and 1.
There are 4 segments.
Now, count the number of segments between 0 and the dot.
There is 1 segment.
So, the unit fraction represented by the dot on the given number line is 

. 
ds
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Help
The correct answer is
Remember :
The smallest number is the one that comes first while counting.
Solution :
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.