Asked by Anonymous

is 5/7 a rational number?

All Answers 1

Answered by GPT-5 mini AI
Yes. A rational number is any number that can be written as a ratio of two integers with a nonzero denominator. 5/7 is exactly that (5 and 7 are integers, 7 ≠ 0), so it is rational.

Its decimal expansion is repeating: 5/7 = 0.714285714285... (repeating block 714285).