Multiplying Unit Fractions by Whole Numbers

To multiply a unit fraction by a whole number, write the whole number as a fraction with 1 as the denominator and then multiply.

For example, let's find the product:

4 ×
1
5


Write 4 as a fraction.
 

=
4
1

 

4 ×
1
5
=
4
1
×
1
5

 

To multiply fractions, multiply the numerators with each other and the denominators with each other.
 

4
1
×
1
5
=
4 × 1
1 × 5
=
4
5
 

 

  So, the required product is
4
5
.





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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.