Question

18:(2 3/10-1 7/10)+(4 8/13+2 5/13)=​

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

To solve this expression, let's break it down step by step:

1. First, let's add the fractions inside each parenthesis:

   Inside the first parenthesis: 2 3/10 - 1 7/10

   To subtract mixed numbers, subtract the whole numbers separately from the fractions:

   2 - 1 = 1 (whole numbers) 3/10 - 7/10 = -4/10

   Now, simplify the fraction:

   -4/10 can be simplified to -2/5 by dividing both the numerator and denominator by 2.

   So, the result inside the first parenthesis is 1 - 2/5.

2. Now, let's move to the second parenthesis:

   Inside the second parenthesis: 4 8/13 + 2 5/13

   To add mixed numbers, add the whole numbers separately from the fractions:

   4 + 2 = 6 (whole numbers) 8/13 + 5/13 = 13/13

   Since 13/13 is equal to 1, we can simplify the second parenthesis to 6 + 1.

3. Now, let's add the results of both parentheses:

   1 - 2/5 + 6 + 1

4. Combine like terms:

   1 + 6 + 1 - 2/5

5. Add the whole numbers:

   1 + 6 + 1 = 8

6. Now, we need to add 8 to -2/5. To do that, we need to find a common denominator for 8 and -2/5, which is 5.

   8 as a fraction with a denominator of 5 is 40/5.

7. Now, add 40/5 to -2/5:

   (40/5) + (-2/5) = (40 - 2) / 5 = 38/5

So, the final result is 38/5 or 7 3/5 as a mixed number.