Question

2 3/7-4 6/11-1 4/7+6 9/11=

Answer 1

= (2 3/7 - 1 4/7) + (6 9/11 - 4 6/11) = 6/7 + 2 3/11 = 66/77 + 2 21/77 =
= 2 87/77 = 3 10/77.
Ответ: 3 целых 10/77.

Answer 2

1) 2 3/7-1 4/7=6/7
2) 6 9/11-4 6/11=2 3/11
3) 2 3/11+6/7=25/11+6/7=175/77+66/77
=241/77=3 10/77

Answer 3

To calculate the expression, we need to convert all the mixed fractions into improper fractions and then perform the operations. Let's go step by step:

1. Convert the mixed fractions to improper fractions: 2 3/7 = (2 * 7 + 3) / 7 = 17 / 7 4 6/11 = (4 * 11 + 6) / 11 = 50 / 11 1 4/7 = (1 * 7 + 4) / 7 = 11 / 7 6 9/11 = (6 * 11 + 9) / 11 = 75 / 11

Now the expression becomes: 17 / 7 - 50 / 11 - 11 / 7 + 75 / 11

2. Find the least common multiple (LCM) of the denominators (7 and 11): LCM(7, 11) = 7 * 11 = 77

3. Rewrite each fraction with the common denominator (77): (17 / 7) * (11 / 11) = 187 / 77 (50 / 11) * (7 / 7) = 350 / 77 (11 / 7) * (11 / 11) = 121 / 77 (75 / 11) * (7 / 7) = 525 / 77

4. Now, perform the operations: 187 / 77 - 350 / 77 - 121 / 77 + 525 / 77

5. Combine the fractions with the same denominator: (187 - 350 - 121 + 525) / 77

6. Calculate the numerator: (187 - 350 - 121 + 525) = 241

7. The final result is: 241 / 77

This fraction cannot be further simplified, so the answer is approximately: 241 / 77 ≈ 3.1299