Мастер выполнил за 4ч за 5ч за 2,5ч за 8ч. какую часть он выполнил за час.результат запишите в виде десятичной дроби.
ERKO20
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24.07.2019 15:40
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1/4=0,25(части) - за 1 час
1/5=0,2(ч) - за 1 час
1/2,5=10/25=2/5=0,4(ч) - за 1 час
1/8=0,125(ч) - за 1 час