関連ワード:  is 5/8 rational or irrational    is 5 8 rational or irrational    is 5 over 8 rational or irrational    is 5 3 8 rational or irrational    is 5 1 8 rational or irrational    is 7 5 8 rational or irrational    is 2 5 8 rational or irrational    is negative 5/8 rational or irrational    is the square root of 5 8 rational or irrational    7 5 √ 8 is rational or irrational