Question

3/2/5+1/7/10:17/20.​

Answer 1

Ответ:

Ответ в изображении......

Answer 2

To solve this expression, you should follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right). In this case, you don't have parentheses or exponents, so you'll perform the operations from left to right.

Here's the expression broken down step by step:

1. 3/2/5: First, divide 3 by 2, which equals 1.5.
2. 1/7/10: Next, divide 1 by 7, which equals approximately 0.142857. Then, divide the result by 10, which equals approximately 0.014286.

Now, we have:

1.5 + 0.014286 - 17/20

3. 1.5 + 0.014286: Add the two results together.

1.514286 - 17/20

4. 1.514286 - 17/20: To subtract these fractions, you need to have a common denominator. The common denominator is 20.

(1.514286 * 20/20) - (17/20)

5. (1.514286 * 20/20) - (17/20): Now, subtract the fractions with the same denominator.

(30.28572/20) - (17/20)

6. (30.28572/20) - (17/20): Finally, subtract the numerators and keep the common denominator.

(30.28572 - 17)/20

7. (30.28572 - 17)/20: Subtract 17 from 30.28572.

13.28572/20

8. 13.28572/20: Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 1.3164286.

(13.28572 / 1.3164286) / (20 / 1.3164286)

9. (13.28572 / 1.3164286) / (20 / 1.3164286): Divide both the numerator and denominator by 1.3164286.

10 / 15

10. 10 / 15: Further simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 5.

2/3

So, the final result of the expression is 2/3.