Question

( 18 2/3+2 1/8)-( 13-8 5/9)​

Answer 1

1) Смотри ответ.

2) переписывай.

Удачи в математике.

Answer 2

To calculate the expression (18 2/3 + 2 1/8) - (13 - 8 5/9), you should follow these steps:

Step 1: Add the mixed numbers inside the parentheses:

18 2/3 + 2 1/8: To add mixed numbers, first add the whole numbers, then add the fractions.

18 + 2 = 20 (whole numbers) 2/3 + 1/8 = (16/24 + 3/24) = 19/24

So, 18 2/3 + 2 1/8 = 20 19/24

Step 2: Calculate the subtraction inside the parentheses:

13 - 8 5/9: To subtract mixed numbers, first subtract the whole numbers, then subtract the fractions.

13 - 8 = 5 (whole numbers) 0/1 - 5/9 = -5/9

So, 13 - 8 5/9 = 5 - 5/9

Step 3: Now, you have the expression (20 19/24) - (5 - 5/9).

Step 4: Subtract the second result from the first result:

20 19/24 - (5 - 5/9)

To subtract, you need to change the subtraction to addition by taking the opposite (negation) of the second expression and then adding it:

20 19/24 + (-(5 - 5/9))

Now, negate (5 - 5/9) by making it positive:

20 19/24 + (5/9 - 5)

To add these, you need to find a common denominator:

The common denominator for 24 and 9 is 72.

20 19/24 + (40/72 - 360/72)

Now, add:

20 19/24 + (-320/72)

To add mixed numbers, you first add the whole numbers:

20 - 0 = 20 (whole numbers)

Now, add the fractions:

19/24 - 320/72: To add these fractions, you need a common denominator, which is 72.

(19/24) * (3/3) = 57/72 (320/72)

Now subtract:

20 + (57/72 - 320/72) = 20 - 263/72

To simplify the result:

20 - 263/72

To make it more understandable, you can express this as a mixed number:

19 11/72

So, the final result is 19 11/72.