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elyakhina1976
@elyakhina1976
July 2022
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Вычислите значение выражения наиболее удобным способом:
1 1/2 х 2 10/13 +2 3/4 х 2 10/13 - 2 10/13 х 3 1/6
х - умножить
/ - дробь
"пробел" - целая часть и дробь( например: 2 целых и десять тринадцатых)
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svetazuna
1 1/2 * 2 10/13 + 2 3/4 * 2 10/13 - 2 10/13 * 3 1/6 =
= 2 10/13 * (1 1/2 + 2 3/4 - 3 1/6) =
= 2 10/13 * (3/2 + 11/4 - 19/6) =
= 2 10/13 * (18/12 + 33/12 - 38/12) =
= 36/13 * 13/12
= 3
12 votes
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Answers & Comments
= 2 10/13 * (1 1/2 + 2 3/4 - 3 1/6) =
= 2 10/13 * (3/2 + 11/4 - 19/6) =
= 2 10/13 * (18/12 + 33/12 - 38/12) =
= 36/13 * 13/12 = 3