Irrational numbers cannot be expressed as a ration. These numbers are non repeating and non terminating. For example π is an irrational number.
In the given number 0.7070707070, we can see that 70 is repeating and it terminates as well.
Therefore, from the above definition of irrational numbers we can conclude that the number 0.7070707070 is not an irrational number because it terminates as well as repeated.
