Выполните действия: 9 5/21-(10-3 5/28). Created by hvadik. matematika-ru

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hvadik @hvadik

July 2022 1 6 Report

Выполните действия: 9 5/21-(10-3 5/28)

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ppp6491

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9целых 5/21 = (9*21+5)/21= 194/21
3целых 5/28 = (3*28+5)/28 = 89/28
(10-3 5/28) = 10-(89/28) = (10*28-89)/28 = 191/28
9 5/21-(10-3 5/28) = 194/21-191/28 = (194*28 -191*21)/21*28 = 1421/588 = 203/84 = 29/12 =2целых 5/12

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