One half, one third, one fourth, one fifth, one sixth, one seventh, one eighth, one ninth, One in ten, one in eleven are there 1 / 100, 1 / 101, 1 / 200, 1 / 201 in this arrangement

One half, one third, one fourth, one fifth, one sixth, one seventh, one eighth, one ninth, One in ten, one in eleven are there 1 / 100, 1 / 101, 1 / 200, 1 / 201 in this arrangement

If the denominator is even, it is positive; if the denominator is odd, it is negative,
Therefore, there are 1 / 100, no 1 / 101 (with negative 1 / 101), no negative 1 / 200 and negative 1 / 201 in this arrangement