Multiplication and division of fractions
Multiplication and division of fractions
Points to note
- Multiplication of fractions involves multipling the two numerators together then then the two denominators together.
![](https://elimufeynman.s3.amazonaws.com/media/resources/multiplication_division1.jpg)
- However,when multiplying fractions inorder to simplify do so by canceling factors common to both numerators denominators.
![](https://elimufeynman.s3.amazonaws.com/media/resources/multiplication_division2.jpg)
- Whole numbers are multiplied with numerator only.
![](https://elimufeynman.s3.amazonaws.com/media/resources/multiplication_division3.jpg)
- All mixed numbers are converted to improper fractions when multiplying or dividing.
![](https://elimufeynman.s3.amazonaws.com/media/resources/multiplication_division4.jpg)
- In division of fractions, change the division signs to multiplication then change the second fraction to be its reciprocal (invert it).
![](https://elimufeynman.s3.amazonaws.com/media/resources/multiplication_division5.jpg)
![](https://elimufeynman.s3.amazonaws.com/media/resources/multiplication_division6.jpg)
Multiplication of simple fractions
Example
Simplify 3/9 x 3/16
![](https://elimufeynman.s3.amazonaws.com/media/resources/multiplication_division7.jpg)
Division of mixed fractions
The steps to follow
![](https://elimufeynman.s3.amazonaws.com/media/resources/Multiplication-division_8.jpg)
Example
![](https://elimufeynman.s3.amazonaws.com/media/resources/Multiplication-division_9.jpg)