Mathematics for IGCSE & O level - Number (Section 2 - No. 35)
If a number is rational, then it can be expressed as:
A product of its prime factors
A fraction a/b where a and b are integers and b ≠ 0
A decimal that neither terminates nor repeats
An irrational number
स्पष्टीकरण
That's the definition of a rational number