Question

4*(2 1/2+1 3/4)-(6 2/3+4 4/5):2​

Answer 1

Ответ:

4*(2 1/2+1 3/4)-(6 2/3+4 4/5):2=11 4/15

Пошаговое объяснение:

2 1/2²+1 3/4=2 2/4+1 3/4=3 5/4= 4 1/4

4*4 1/4=4/1*17/4=17

6 2/3⁵+4 4/5³=6 10/15+4 12/15=10 22/15=11 7/15

11 7/15:2=172/15:2/1=172/15*1/2= 5 11/15

17-5 11/15= 16 15/15-5 11/15=11 4/15

Answer 2

To simplify the expression, follow these steps:

1. Add the mixed numbers within the parentheses.
2. Perform the operations inside the parentheses.
3. Finally, divide the result by 2.

Let's start with the addition of mixed numbers within the parentheses:

(2 1/2 + 1 3/4) = (2 + 1) + (1/2 + 3/4) = 3 + (2/4 + 3/4) = 3 + 5/4

Now, perform the addition:

3 + 5/4 = 12/4 + 5/4 = 17/4

So, the expression within the first set of parentheses simplifies to 17/4.

Next, let's work on the second set of parentheses:

(6 2/3 + 4 4/5) = (6 + 4) + (2/3 + 4/5) = 10 + (10/15 + 12/15)

Now, perform the addition:

10 + (10/15 + 12/15) = 10 + 22/15

Now, divide this result by 2:

(10 + 22/15) / 2

To divide by 2, you can multiply the numerator by 1/2:

(10 + 22/15) * (1/2) = 20/2 + 22/30 = 10 + 11/15

So, the entire expression simplifies to 10 + 11/15.