Question

Help with Rational and Irrational Problems

Answer 1

@phi

Answer 2

the good news is its either rational or irrational (no mixture)
so you can rule out any answer that says otherwise.

Answer 3

its rational

Answer 4

the "trick" to recognize rational numbers with decimals is that the if you can list the digits that repeat, it's rational

example. 0.15 with a line over 0.15 means 0.151515.... and so on
the 15 repeats, which means rational
ditto for 0.6666...

Answer 5

an example if irrational is
pi = 3.14159.... there is *no pattern* and you can't guess the next digit unless you calculate. that is different from 0.151515... where we know the next digits are 15 and so on.