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## Answers

An integer or a fraction like 6,1/2 or 3.45 ..... are known as rational numbers.

____≠0)

******for example 3/5,4/3

To check whether a no. is rational or not

it should terminating or repeating decimal

for example

0.8 ,0.3333 etc..

π=3.1415926535897932384626433832795.. is irrational number

Now find whether

7/21 ,4/9 and 0.8789453.. are rational or not..