Предмет: Математика, автор: Zanilk231

Решите дроби

(10 9/14 - 4 1/2 ) + 2/3

( 7 2/9 + 1 7/9 ) ∙ 5/18

( 1 2/5 - 1/4 ) + 3 9/10

Ответы

Автор ответа: Аноним
1
(10 9/14 - 4 1/2) + 2/3=
10 27/42 - 4 21/42 + 28/42 = 6 34/42

(7 2/9 + 1 7/9) * 5/18 =
9 * 5/18 = 45/18 = 2 9/18 = 2 1/2

(1 2/5 - 1/4) + 3 9/10 =
1 8/20 - 5/20 + 3 18/20 = 5 1/20
Предыдущий вопрос
Следующий вопрос
Интересные вопросы
Предмет: Английский язык, автор: МучеNица
составить 10 вопросов к тексту на английском
As soon as we were old enough to go to school, we walked there by ourselves. We were lucky since the school wasn't far from our house. Some children had to walk a mile or more to get there.
There were three classrooms: one for the smallest children, one for the middle class and a big room for the oldest children. The headmaster, Mr Andrews, taught the oldest children. He was very strict. No talking was allowed. If you were bad, you had to come out and stand in front of the whole class. If it was really serious, you had to hold out your hand for the cane. It didn't hurt too much.
The schoolyard was divided by a wall. The girls came into school by the garden gate and the boys by the main gate. It was funny really. Although boys and girls were taught in the same class, we played in separate playgrounds with that wall between us.
We started the day in the big room. We sang a hymn and said a prayer. The little children learned to write by drawing their letters in a sand tray. When you were older, you used dip pens with ink. I remember we had to learn our tables by heart and recite poetry. We did modelling with dark-green plasticine, and the older girls learned to sew and knit.
There were no school lunches. We went home for ours, but children who lived too far away brought theirs to school. In winter, Mr Andrews made a hot drink and the children sat round the coal fire in the schoolroom to eat
2 года назад
Предмет: Английский язык, автор: Тфыеутф2001
Вставьте где набо There are there is и др.
About the sofa is a bedside table. On thr nightstand stand
watch.On the sides of the couch, hsng small lamps. On the wall hangs a
picture. To the left of the window, where the flowers grou. Back in the
living room there is a TV. Before him stands a coffee table. The left
door leading to the corridor.
Очень надо!
2 года назад
Предмет: Русский язык, автор: dp0702
предложение с фразеологизмом заговаривать зубы
2 года назад
Предмет: Алгебра, автор: FerrumIgnique
МНОГО БАЛЛОВ
Решите, пожалуйста:
Cos2x=sqrt(2)*(cosx+sinx)- - методом разложения на множители
Cos 2x+10cos^2x+5sinx=9 - свести к квадратному
3cosx-4sinx=2 - метод вспомогательного аргумента
8 лет назад
Предмет: Математика, автор: polia24
5м 6 см - 4ли 8см помогите решить
8 лет назад