Constructions

Step1. multiply numerator/ Denominator by square root of 11 denominator turns to perfect sq. root Step2. Make sure all radicals are simplified Step3. Simplify the fraction if needed Step4. sq.root 121 is 11 
Step1. Multiply numerator & denominator of the fraction by the conjugate Step2.Product of the sum and difference of two terms. Step3. Make sure all radicals are simplified Step4. Simplify the fraction if needed
Step1. Multiply i change conjugate 1+2i Step2. Product of the sum different signs Step3. Make sure all radicals are simplified Step4. Simplify the fraction

Definition

The process by which a fraction is rewritten so that the denominator contains only rational numbers. A variety of techniques for rationalizing the denominator are demonstrated below. Square Roots.