Предмет: Математика, автор: YutaSan

Найдите значение суммы и разности дробей: 7/12 и 5/16



Задание №4.

Сравните значения выражений:



337/10-191/5 и 40- 25,7

​

Ответы

Автор ответа: NikkyTrash
2

Ответ:

сумма равна 43/48

разность 13/48

номер 4

первое выражение меньше второго

Пошаговое объяснение:

приводим к общему знаменателю 28/48 и 15/48 после чего складываем и вычитаем

номер 4

решаем левую и правую части, после чего сравниваем

  1. Приводим к общему знаменателю 337/10 -382/10
  2. Вычитаем: 337/10 - 382/10 = -45/10
  3. После выражаем десятичной дробью: -4,5
  4. Выражение справа: 40-25,7 = 14,3
  5. Теперь просто сравниваем:

Слева находится отрицательное число, справа положительное, следовательно левая часть меньше правой, знак меньше

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