Question

2:5+4:5=7:10 рішити приклад

Answer 1

Відповідь:

2:5+4:5=7:10

0,4+0,8=0,7

1,2=0,7

Хиба

Пояснення:

1) Виконати ділення

2) Додати числа

3) Перевірити рівність

В-дь: Рівність є хибною, оскільки ліва і права частини відрізняються.

Answer 2

To solve the expression "2:5 + 4:5 = 7:10," you need to perform addition of fractions. Here's how you can do it:

Step 1: Find a common denominator for the fractions. The least common multiple (LCM) of 5 and 10 is 10.

Step 2: Convert each fraction to have a denominator of 10.

For the first fraction (2:5): Multiply both the numerator and denominator by 2 (to get a denominator of 10): 2/5 * 2/2 = 4/10

For the second fraction (4:5): Multiply both the numerator and denominator by 2 (to get a denominator of 10): 4/5 * 2/2 = 8/10

Step 3: Add the two fractions together:

4/10 + 8/10 = 12/10

Step 4: Simplify the fraction, if possible:

The fraction 12/10 can be simplified by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 2 in this case:

12 ÷ 2 / 10 ÷ 2 = 6/5

So, 2:5 + 4:5 = 7:10 simplifies to 6:5.