Multiplying Fractions by Whole Numbers

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

For example, let's find the product:

9 x

1 7

 

First, write 9 as a fraction.

 

9

=

9 1

 

9 x

1 7

=

9 1

x

1 7

 

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

9 1

x

1 7

=

9 x 1 1 x 7

=

9 7

 

Now,

9 7

=

1  2 7

 

So, the required product is

1  2 7

.