Предмет: Математика, автор: 122322433

По математике пожалуйста решайте с объяснением пожалуйста ​

Приложения:

Ответы

Автор ответа: evgenchpu
1

Ответ:

= 3,7

Пошаговое объяснение:

1)  выполняем действия в скобках,  все дроби приводим к одному знаменателю. целую часть обращаем в неправильную дробь.\frac{14}{15} +\frac{5}{2} +\frac{3}{10} =\frac{14*2+5*15+3*3}{30} =\frac{28+75+9}{30}=\frac{112}{30}=\frac{56}{15}

2) выполняем умножение, по возможности сокращая числитель и знаменатель на одно и тоже число. числа 56 и 15 разложим на множители (согласно таблице умножения), после сокращения остается в числителе  2*8,  в знаменателе \frac{56}{15} *\frac{8}{7} *\frac{3}{4} = \frac{7*8*8*3}{5*3*7*4} =\frac{2*8}{5} =\frac{16}{5} =3,2

3) далее  складываем   3,2+0,5= 3,7

 как то так.


122322433: а 2?
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