The definition of a rational number is if you can write it as a fraction. The actual answer will be left as an exercise for the reader.
- 2/15 is the ratio of -2 and 15, or of 2 and -15 ... nice and rational.
yea,it is rational
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Yes.
Rational
Well, isn't that a happy little question! No, 2 over 15 is not irrational. In fact, it is a rational number because it can be expressed as a simple fraction. Just like painting a beautiful landscape, math can be quite lovely once you understand its different forms.
If it ends there, it is rational. If it continues with the same digit (2 in this case) over and over, it is also rational.
Oh, dude, yes, 15 over 7 is a rational number. Rational numbers are just numbers that can be expressed as a ratio of two integers, like a fancy math fraction. So, 15 over 7 totally fits the bill. It's like saying, "Hey, I'm a rational number, but I like to keep it interesting with a fraction twist."
As the ratio between two integers, it's practically the very definition of rational.