関連ワード:  is 0.75 a rational number    is 0.75 a rational number why or why not    is 0.75 repeating a rational number    is negative 0.75 a rational number    is 0.75 an irrational number    is 0.75 a rational or irrational number    show that 0.75 is a rational number    the decimal number 0.75 is a rational number    is the square root of 0.75 a rational number    0.75 when represented as a rational number is