Вопрос:

Вычислите: a) 5/2 * 3/3, b) 3/8 * 1/3, c) 1/12 * 5/36, d) 11/55 * 5/21.

Ответ:

a) (5/2)*(3/3) = 15/6 = 5/2. b) (3/8)*(1/3) = 3/24 = 1/8. c) (1/12)*(5/36) = 5/432. d) (11/55)*(5/21) = 55/1155 = 1/21.

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