Equivalent Fractions with Denominators of 10, 100, and 1000
Equivalent fractions are different fractions that have same value or represent same part of a whole.
Equivalent fractions can be created by multiplying or dividing both the numerator and denominator by the same number.
For example: Consider the fraction
2 10
.
Let's find the fraction equivalent to
2
10
with denominator 100.
We know that, 10 when multiplied by 10 gives 100.
So, multiply both the numerator and denominator of the fraction by 10.

= 

So, 

= 

. 
So, the required fraction is
20 100
.
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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.