Question

20:(6 3/14+1 11/14)-(4 1/4-2 3/4):5

Answer 1

Ответ:

1) 6 3\14+1 11\14=7 14/14=8

2)20:8=20\8=2.5

3)4 1\4-2 3\4=1 5\4-3\4=1 2\4

4)1 2\4:5=6\4*1\5=6\20=0.3

5)2.5-0.3=2.2

ответ:2.2

Пошаговое объяснение:

Answer 2

To simplify the given expression, we can follow the order of operations (PEMDAS/BODMAS - Parentheses/Brackets, Exponents/Orders, Multiplication and Division, Addition and Subtraction).

Here's how we can simplify it step by step:

1. Simplify inside the parentheses/brackets: 6 3/14 + 1 11/14 = 7 (whole number) + 3/14 (fraction) = 7 3/14

2. 4 1/4 - 2 3/4 = 2 (whole number) - 3/4 (fraction) = 2 - 3/4

3. Now, we have the following expression: 20:(7 3/14 + (2 - 3/4)):5

4. Continue simplifying within the parentheses: 7 3/14 + (2 - 3/4) = 7 3/14 + (8/4 - 3/4) = 7 3/14 + 5/4

5. Now, we have the following expression: 20:(7 3/14 + 5/4):5

6. Continue simplifying inside the parentheses: 7 3/14 + 5/4 = 7 3/14 + 5 * (3/4) = 7 3/14 + 15/4

7. Now, we have the following expression: 20:(7 3/14 + 15/4):5

8. Add the whole numbers in the numerator: 7 + 20 = 27

9. Now the expression is simplified to: 27:(7 3/14 + 15/4):5

10. Continue simplifying within the parentheses: 7 3/14 + 15/4 = 7 3/14 + 15 * (7/14) = 7 3/14 + 105/14

11. Now, the expression is: 27:(7 3/14 + 105/14):5

12. Add the whole numbers in the numerator: 7 + 27 = 34

13. Now the expression is: 34:(34/14):5

14. Simplify the division by dividing 34 by 14: 34/14 = 17/7

15. Now the expression is: 34:(17/7):5

16. To divide by a fraction, you can multiply by its reciprocal (flip the fraction): 34 * (7/17) * 5

17. Multiply the numbers: (34 * 7 * 5) / 17

18. Calculate the result: (1190) / 17 ≈ 70

So, the simplified value of the expression is approximately 70.