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##### Asked by: Rosio Schmidthals

business and finance interest rates# Why do we rationalize denominators?

Last Updated: 8th February, 2020

**denominator**, you can use a technique called

**rationalizing**a

**denominator**to eliminate the radical.The point of

**rationalizing**a

**denominator**is to makeit easier to understand what the quantity really is by removingradicals from the

**denominators**.

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In this manner, why do we rationalize?

**Rationalization** is actually a defense mechanismthat allows **you** to justify bad behavior or feelings. It's away to distort facts to make things look better than **they** do– to convince others and yourself that your motives andactions are good, not bad.

how do we rationalize? **So, in order to rationalize the denominator, we need to getrid of all radicals that are in the denominator.**

- Step 1: Multiply numerator and denominator by a radical thatwill get rid of the radical in the denominator.
- Step 2: Make sure all radicals are simplified.
- Step 3: Simplify the fraction if needed.

Secondly, how do you rationalize denominators?

**Rationalize** the **Denominator**."**Rationalizing** the **denominator**" is when **we**move a root (like a square root or cube root) from the bottom of afraction **to** the top.

What does it mean to rationalize a number?

The process by which a fraction is rewritten so that thedenominator contains only rational **numbers**. A variety oftechniques for **rationalizing** the denominator aredemonstrated below. Square Roots. (a > 0, b > 0, c > 0)Examples.