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Which of the following statements is true about the sum of a rational and an irrational number?

The sum of a rational and irrational number is never an irrational number.

The sum of a rational and irrational number is sometimes a rational number.

The sum of a rational and irrational number is always a rational number.

The sum of a rational and irrational number is always an irrational number.

2 Answers

4 votes
The sum of a rational and irrational number is always an irrational number.This statement is correct
User Abhinavkulkarni
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3 votes

Answer:

The correct option is D

Explanation:

we have to choose the correct statement which is true about the sum of a rational and an irrational number.

An irrational number is a number as a decimal, but not as a fraction i.e in form of p by q. It has endless non-repeating digits to the right of the decimal point.

Rational numbers are the numbers written in form of p by q i.e in form of fraction.

The sum of a rational and irrational number always gives non-repeating and non-terminating let us take example

Rational+irrational=1.3+1.454954775....=2.754954775...

which is irrational.

Hence, the sum of a rational and irrational number is always an irrational number.

Option D is correct.

User Mehrdadep
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