Вопрос
a) 2(3)/(15)-1,9+1(7)/(20)
Решения
4.3
(302 Голоса)
Татьяна
элита · Репетитор 8 лет
Ответ
Для решения данного выражения, сначала приведем дроби к общему знаменателю и затем выполним арифметические операции.
Сначала приведем дроби к общему знаменателю. Общий знаменатель для 15 и 20 равен 60.
Теперь можем выполнить арифметические операции:$2\frac {12}{60} - 1,9 + 1\frac {21}{60} = 2\frac {12}{60} - 1,9 + 1\frac {21}{60} = 2\frac {33}{60} - 1,9 = 2\frac {33}{60} - 1\frac {54}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{60} = 1\frac {79}{