Question

26 : (1 3/7 + 2 4/7) + 1,8*3,5

Answer 1

Відповідь:

Спочатку знайдемо суму дробів 1 3/7 і 2 4/7:

1 3/7 + 2 4/7 = (7/7 + 3/7) + (14/7 + 4/7) = 10/7 + 18/7 = 28/7 = 4

26 : 4 + 1,8 * 3,5

26 : 4 = 6.5

1,8 * 3,5 = 6.3

6,5 + 6,3 = 12,8

Отже, вираз 26 : (1 3/7 + 2 4/7) + 1,8 * 3,5 дорівнює 12,8.

Answer 2

To solve this expression step by step, let's break it down:

1. Start by adding the fractions inside the parentheses:

   (1 3/7 + 2 4/7) = (10/7 + 18/7)

2. Add the fractions:

   (10/7 + 18/7) = (28/7)

3. Simplify the fraction:

   (28/7) = 4

4. Now, multiply the result by 1.8 * 3.5:

   4 * (1.8 * 3.5) = 4 * 6.3 = 25.2

So, the final answer is 25.2.