
4/2+2/8 = ?2/5+9/3 = ?


Ответы на вопрос

Ответ:
2,25
3,4
Пошаговое объяснение:
1) 4/2+2/8=2+0,25=2,25
2) 2/5+9/3=0,4+3=3,4



Ответ: 4/2+2/8 = 2+1/4=2 1/4=2,25
2/5+9/3 = 3+2/5=3 2/5=3,4.
Пошаговое объяснение:



Let's solve these two arithmetic problems step by step:
4/2 + 2/8:
To add these fractions, you need to have a common denominator. In this case, the common denominator is 8.
- For 4/2, you can see that 2 is equivalent to 4/2, so it's already in the right form.
- For 2/8, you can simplify this fraction by dividing both the numerator and denominator by 2, which gives you 1/4.
So, the expression becomes:
(4/2) + (1/4)
Now, you can add the fractions:
(4/2) = 2
(1/4)
Now, the expression becomes:
2 + (1/4)
To add these fractions, you need a common denominator, which is 4:
2/1 + 1/4
Now, you can add them together:
(2 * 4 + 1) / 4 = 9/4
So, the answer is 9/4.
2/5 + 9/3:
To add these fractions, you need to find a common denominator. In this case, the least common denominator is 15, which is the smallest multiple of both 5 and 3.
For 2/5, you can express it with a denominator of 15 by multiplying both the numerator and denominator by 3:
(2/5) * (3/3) = 6/15
For 9/3, it already has a denominator of 3, so you don't need to change it.
Now, the expression becomes:
(6/15) + (9/3)
To add these fractions, they have the same denominator, which is 15:
(6/15) + (9/15)
Now, you can add them together:
(6 + 9) / 15 = 15/15 = 1
So, the answer is 1.


Похожие вопросы
Топ вопросов за вчера в категории Математика
Последние заданные вопросы в категории Математика
-
Математика
-
Литература
-
Алгебра
-
Русский язык
-
Геометрия
-
Английский язык
-
Химия
-
Физика
-
Биология
-
Другие предметы
-
История
-
Обществознание
-
Окружающий мир
-
География
-
Українська мова
-
Информатика
-
Українська література
-
Қазақ тiлi
-
Экономика
-
Музыка
-
Право
-
Беларуская мова
-
Французский язык
-
Немецкий язык
-
МХК
-
ОБЖ
-
Психология
-
Физкультура и спорт
-
Астрономия
-
Кыргыз тили
-
Оʻzbek tili