Предмет: Математика, автор: Eeeerruz

Дам останні 100 балів допоможіть з прикладом

Приложения:

Ответы

Автор ответа: bilanovfatim
1

Ответ:

\frac{1}{4}

Пошаговое объяснение:

-10,1 + 4\frac{7}{12} + (-1\frac{8}{15}) + 9\frac{2}{3} + (-0,4) + (-1\frac{29}{30})

Приведем все слагаемые к дробному виду и вычислим значение выражения:

-10\frac{1}{10} + 4\frac{7}{12} - 1\frac{8}{15} + 9\frac{2}{3} - \frac{4}{10} - 1\frac{29}{30} = -\frac{101}{10} + \frac{55}{12} - \frac{23}{15} + \frac{29}{3} - \frac{4}{10} - \frac{59}{30} =\\ \\ =-\frac{303}{30} +      \frac{55}{12} - \frac{46}{30} + \frac{290}{30} - \frac{12}{30} - \frac{59}{30} =\\ \\=\frac{-303-46+290-12-59}{30} + \frac{55}{12} = -\frac{130}{30} + \frac{55}{12}=\\\\=-\frac{26}{6} +   \frac{55}{12} = \frac{-52+55}{12}= \frac{3}{12} = \frac{1}{4}


Eeeerruz: Спасибі
Eeeerruz: Ти просто мені поміг
Eeeerruz: Ти Бог
Автор ответа: iramazurk
1

Пошаговое объяснение:

1) -10,1 + 4 7/12 = -10 1/10 + 4 7/12 = -10 6/60 + 4 35/60 = -9 66/60 + 4 35/60 = -5 31/60

2) -5 31/60 + (-1 8/15) = -5 31/60 - 1 8/15 = -5 31/60 - 1 32/60 = -6 63/60 = -7 3/60

3) -7 3/60 + 9 2/3 = -7 3/60 + 9 40/60 = 2 37/60

4) 2 37/60 + (-0,4) = 2 37/60 - 0,4 = 2 37/60 - 4/10 = 2 37/60 - 24/60 = 2 13/60

5) 2 13/60 + (-1 29/30) = 2 13/60 - 1 29/30 = 2 13/60 - 1 58/60 = 1 73/60 - 1 58/60 = 15/60 = 1/4

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