Asked by hannah

i'm really confused about if 0.123333... is
A) rational number
B) irrational number
C)integer,rational number
D)whole number, integer,rational number

can somebody help me please
thank you

Answers

Answered by Reiny
it is rational, since I can write it as a fraction

Quick way to find that fraction ....

1. write down the digits to the end of the first repeat ---- 123
2. subtract all the digits that don't repeat ----- 123 - 12 = 111
that is your numerator
3. write down a 9 for each repeating digit, followed by a 0 for each non-repeating digit
900 <---- that is your denominator.

so .123333.... = 111/900 = 37/300

check with calculator, it works!

make up your own repeating decimal and try my method
Answered by mathwiz
you are a noob

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