2/15 is the ratio of 2 to 15 ... precisely the definition of a rational number.
7.5
It is rational
The square root of 2 is irrational, and therefore, this equation is unsolvable.
2/9 is rational by definition- it is a ratio of two integers.
Rational (-1.5) Since it can be expressed as a fraction.
No
- 2/15 is the ratio of -2 and 15, or of 2 and -15 ... nice and rational.
7.5
The result would be an irrational number
It is rational
It is rational
Rational
irrational
It is equal to 21/2 which is a rational number
It is irrational because when you divide 2 by 8 you get a terminating decimal,0.205.
irrational
The square root of 15 is an irrational number and it is about 3.873 rounded to three decimal places