вычислите 30:(5-21\26*5 1/5:1 1\5)
1)21/26 /5 1/5 = 4 1/5
2)4 1/5 / 1 1/5 = 3 1/3
3)5 - 3 1/3 = 1 2/3
4)30 / 1 2/3 = 18
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1)21/26 /5 1/5 = 4 1/5
2)4 1/5 / 1 1/5 = 3 1/3
3)5 - 3 1/3 = 1 2/3
4)30 / 1 2/3 = 18
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