2:2 2/3 +1 1/5 * 3 1/3-2 5/6 Прошу, очень срочно надо. Даю 20баллов. Created by mszamulskaya. matematika-ru

6 Прошу, очень срочно надо. Даю 20баллов...

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2:2 2/3 +1 1/5 * 3 1/3-2 5/6
Прошу, очень срочно надо.
Даю 20баллов

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svetazuna 2 : 2 2/3 +1 1/5 * 3 1/3 - 2 5/6 = 1 11/12,

1) 2 : 2 2/3 = 2 : 8/3 = 2 * 3/8 = 6/8 = 3/4,
2) 1 1/5 * 3 1/3 = 6/5 * 10/3 = 2 * 2 = 4,
3) 3/4 + 4 - 2 5/6 = 4 3/4 - 17/6 = 19/4 - 17/6 = 57/12 - 34/12 = 23/12 = 1 11/12

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