Question

Помогите не могу решить 1/2-1/6____2; 9/16____3/4-3/8; 5/6-2/3____1/3; 1/2+1/6____1/2-1/6 ; 17/14-5/7_____11/21+1/7 спасите

Answer 1

Просто находи общие знаменатели с помощью НОК'а.

Answer 2

Arithmetic Operations with Fractions

Let's solve the given arithmetic operations involving fractions step by step.

1. 1/2 - 1/6 - To subtract fractions, we need a common denominator. In this case, the common denominator is 6. - The operation becomes: 3/6 - 1/6 = 2/6 = 1/3.

2. 9/16 - 3/4 - To subtract these fractions, we need a common denominator. The common denominator is 16. - The operation becomes: 9/16 - 12/16 = -3/16.

3. 5/6 - 2/3 - To subtract these fractions, we need a common denominator. The common denominator is 6. - The operation becomes: 5/6 - 4/6 = 1/6.

4. 1/2 + 1/6 - To add fractions, we need a common denominator. In this case, the common denominator is 6. - The operation becomes: 3/6 + 1/6 = 4/6 = 2/3.

5. 1/2 - 1/6 - This was already solved in the first step: 1/2 - 1/6 = 1/3.

6. 17/14 - 5/7 - To subtract these fractions, we need a common denominator. The common denominator is 14. - The operation becomes: 17/14 - 10/14 = 7/14 = 1/2.

7. 11/21 + 1/7 - To add fractions, we need a common denominator. The common denominator is 21. - The operation becomes: 11/21 + 3/21 = 14/21 = 2/3.

So, the results of the given operations are: - 1/2 - 1/6 = 1/3 - 9/16 - 3/4 = -3/16 - 5/6 - 2/3 = 1/6 - 1/2 + 1/6 = 2/3 - 17/14 - 5/7 = 1/2 - 11/21 + 1/7 = 2/3

I hope this helps! If you have any more questions or need further assistance, feel free to ask.