Question

ratonalise the demoninater of 2/7 - 2

Answer 1

In order to rationalize the denominator, you must multiply the numerator and denominator of a fraction by some radical that will make the 'radical' in the denominator go away.

Below is some background knowledge that you must remember in order to be able to understand the steps we are going to use.

Multiplying a fraction by 1

Remember that you can create an equivalent fractionby multiplying your original fraction (2323 in the example below) by 1, 5555 , or by 7777 or by any form of 1 as a fraction

23⋅55=101523551015

Multiply Radicals

The product of two square roots is the square root of the products

(In other words you can multiply two square roots and put them under the same radical as shown below)

2‾√3‾√=6‾√

Answer 2

Step-by-step explanation:

Hope it helps you.......

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