Question

26÷(1 3/7 + 2 4/7) + 1,8*3,5 =

Answer 1

26 : (1 3/7 + 2 4/7) + 1,8 · 3,5 = 12,8

1) 1 3/7 + 2 4/7 = 3 7/7 = 4

2) 26 : 2 = 6,5

3) 1,8 · 3,5 = 6,3

4) 6,5 + 6,3 = 12,8

Ответ: 12,8.

Answer 2

To solve the expression, let's simplify each term step by step:

1. Simplify the fraction inside the parentheses: 1 3/7 + 2 4/7 = 1 + 2 + 3/7 + 4/7 = 3 + 7/7 = 3 + 1 = 4

2. Substitute the simplified fraction back into the expression: 26 ÷ 4 + 1.8 * 3.5

3. Perform the division: 26 ÷ 4 = 6.5

4. Perform the multiplication: 1.8 * 3.5 = 6.3

5. Add the results together: 6.5 + 6.3 = 12.8

Therefore, 26÷(1 3/7 + 2 4/7) + 1.8*3.5 = 12.8.