Multiplying Fractions
How do I multiply two fractions?
- Cancel any factors that are common to both the numerator and the denominator
- The common factors could be in either of the fractions
- Multiply
- Multiply the numerators
- Multiply the denominators
- Cancel any common factors again if possible
How do I multiply two fractions if one is a mixed number?
- Always convert mixed numbers into top heavy fractions before multiplying
- Convert top heavy fractions back into mixed numbers at the end if required
Worked example
Find.
The 15 and 25 can be cancelled before multiplying
Multiply the numerators together and the denominators together
There is no further cancelling that can be done
Write down the fraction