No, it is a rational number.
It that is meant to be the terminating decimal 0.1575757:
0.1575757 = 1575757/10000000
If that is meant to be the recurring decimal 0.1575757... with the 57 repeating forever:
0.1575757... = 1/10 + 57/990
= 156/990
= 26/165
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An irrational number.
When added to a rational number, any irrational number will produce an irrational number.also, when added to an irrational number, any rational number will produce an irrational number.
It is not an irrational number!
Yes, it will always be irrational.
It is not always irrational.