Whole Numbers and Fractions
A whole number can be represented as a fraction and viceversa.
For example:
The whole number 3 can be represented as a fraction with denominator 1.
3 = 

Now, suppose we need to write the whole number 3 as a fraction with denominator 2.
That is, we need to find the numerator in this:
3 = 

Here, to identify the missing numerator,
we need to find the equivalent fraction of 

So, multiply both the numerator and the denominator by 2.

= 

So, the missing numerator is 6.
ds
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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.