Yes.
Expressed as a mixed number in its simplest form, 17/15 is equal to 1 2/15 or one and two fifteenths.
No, 8.5 is a rational number. A rational number is defined as any number that can be expressed as a fraction. 8.5 can be expressed as 8 1/2 or 17/2.
It is 15.
-7
It can be written as a fraction, so it is rational.
Yes. It's exactly equal to the ratio of -17 to 10, which is rational.
Yes 17/2 is a rational number because it can be expressed as a fraction.
Yes.
-17 is a rational number, as is any integer.
17 is a rational number.
Yes because all rational numbers can be expressed as fractions
-17 is a rational number
-17/10 = -1.7
The cosine of 0.489957 radians is 15/17
It is a rational number because it can be expressed as a fraction in the form of -17/1
Since the denominator of the fraction 15 / 17 (15 over 17, or fifteen seventeenths) is a prime number, it cannot be reduced any further.