Observe the following column of numbers: 1 / 2, 1 / 6, 1 / 12, please find out the rule of arrangement and fill in the blanks according to this rule. (1) the ninth number is () the 14th number is

Observe the following column of numbers: 1 / 2, 1 / 6, 1 / 12, please find out the rule of arrangement and fill in the blanks according to this rule. (1) the ninth number is () the 14th number is

According to the question, 1 / 2 = 1 / (1 * 2), 1 / 6 = 1 / (2 * 3), 1 / 12 = 1 / (3 * 4),
So the ninth number is 1 / (9 * 10) = 1 / 90, and the fourteenth number is 1 / (14 * 15) = 1 / 210

Elden Ring Premiere

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