Question

3/8+1/8;5/9+2/9;7/25-2/25;​

Answer 1

Ответ:

Пошаговое объяснение:

3/8+1/8=4/8=1/2 (сократить на 4 )

5/9+2/9=7/9

7/25-2/25=5/25=1/5 (сокр. на 5)

Answer 2

Let's solve each of these arithmetic expressions step-by-step:

1. 3/8 + 1/8: To add fractions with the same denominator, we simply add their numerators and keep the denominator unchanged. (3 + 1) / 8 = 4 / 8

Now, we can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 4 in this case. 4 ÷ 4 / 8 ÷ 4 = 1 / 2

So, 3/8 + 1/8 = 1/2.

2. 5/9 + 2/9: Again, since both fractions have the same denominator, we can add their numerators and keep the denominator unchanged. (5 + 2) / 9 = 7 / 9

The fraction 7/9 is already in its simplest form, so 5/9 + 2/9 = 7/9.

3. 7/25 - 2/25: Here, we have fractions with the same denominator, so we can subtract their numerators and keep the denominator unchanged. (7 - 2) / 25 = 5 / 25

As before, we can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 5 in this case. 5 ÷ 5 / 25 ÷ 5 = 1 / 5

So, 7/25 - 2/25 = 1/5.

In summary:

• 3/8 + 1/8 = 1/2
• 5/9 + 2/9 = 7/9
• 7/25 - 2/25 = 1/5