Multiplication of Fractions

To multiply a fraction by a whole number we can use two methods:

Method 1: Repeated addition
For example,
3 x (1/8) can be calculated by adding 1/8 three times

Method 2: Multiply
For example, 
3/4 x 4/5 can be calculated by multiplying numerators and denominators

A whole number can be written as an improper fraction with 1 in the denominator.

So, 5 = 5/1

To multiply two fractions, multiply numerators of both the fractions and denominators of both the fractions.

For example,
1/3 x 3/5 = (1 x 3)/(3 x 5) = 3/15

To multiply a fraction by a mixed number, first write mixed number as an improper fraction

To multiply two fractions, multiply numerators of both the fractions and denominators of both the fractions