Предмет: Математика, автор: Аноним

найдите НОК чисел 28 и 42

Ответы

Автор ответа: prettypushkova

28 : 2 = 14 42 : 2 = 21
14 : 2 = 7 21 : 3 = 7
7 : 7 = 1 7 : 7 = 1
28 = 2 * 2 * 7 42 = 2 * 3 * 7

НОК (28 и 42) = 2 * 2 * 3 * 7 = 84 - наименьшее общее кратное
84 : 28 = 3 84 : 42 = 2

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