Matematika - Rationalize

Sometimesfarction has a radical in its denominator. We can make it become equivalent fraction with a rational denominator.

When the denominator is a nominal, multiply both the numerator and the denominator by its denominator until the denominator is no longer contains radical.

Example 1

---Times both numerator and denominator by its denominator.



---If the numerator is a whole number put it outside the radical. The denominators are both radical so times it and put inside the radical.


---Then rationalise the radical
                                              

Example 2

---Multiply the numerator and the denominator with the smallest perefect square from the radical. 


---Put the whole number outside the radical. Times the denominator with denominator and put it inside the radical


--- Then rationalise the radical below