Which of the following is not a rational number?a) 3.4 b) $\frac{2}{5}$c) 1.010010001 d) 1.732


Given:

 a) 3.4

b) $\frac{2}{5}$

c) 1.010010001

d) 1.732


To do: Find which if the given numbers are not rational.

Answer:

a) 3.4

A terminating decimal.

So, it is a rational number.

b) $\frac{2}{5}$

$\frac{2}{5}$ = 0.4,

A terminating decimal.

So, it is a rational number.

c) 1.010010001...

If it is a non-terminating non-repeating decimal then it is 

NOT a rational number

d) 1.732

A terminating decimal.

So, it is a rational number.


Tutorialspoint
Tutorialspoint

Simply Easy Learning

Updated on: 10-Oct-2022

17 Views

Kickstart Your Career

Get certified by completing the course

Get Started
Advertisements