If [math] \frac{1}{1} =1, \frac{2}{2} = 1, \frac {3}{3} = 1 ... [/math] why [math] \frac{0}{0} \neq 1 [/math]? Division by Zero: If 1/1 equals 1, 2/2 equals 1, and 3/3 equals 1, then what does 0/0 equal?