Answer: rational
Step-by-step explanation:because a fraction is a rational number
9/15 is a rational number.
A rational number is a number of form p/q where q is not zero and p and q are integers.
Clearly, from the definition, we can observe that 9/15 has a non-zero integer denominator and the numerator is also an integer which leads to the conclusion that 9/15 is a rational number.
Hence, 9/15 is a rational number.
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