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Multiplying fractions with different denominators

How do you multiply fractions with different denominators?

Multiplying fractions with different denominators is easy to understand.

We multiply the numerator by the numerator and the denominator by the denominator.

Examples of multiplying fractions with different denominators

Example 1.

Multiply fractions with different denominators:

5 * 3
87

We multiply the numerator 5 by the numerator 3 and the denominator 8 by the denominator 7:

5 * 3 = 15
8 * 756

Example 2.

Multiply fractions with different denominators:

2 * 3 + a
57

We multiply the numerator 2 by the numerator (3 + a) and the denominator 5 by the denominator 7:

2 * (3 + a) = 6 + 2a
5 * 735

Example 3.

Multiply fractions with different denominators:

6 * 4
9 + a9 + a

Multiply the numerator 6 by the numerator 4 and the denominator (9 + a) by the denominator (9 + a):

6 * 4 = 24
(9 + a) * (9 + a)(9 + a)2