Question

(0,25-43/4) :0,4-1 2/3-1 2/3:5/18​

Answer 1

Ответ:

-129/4

Пошаговое объяснение:

0,25 = 1/4

1/4-43/4= 1-43/4= - 42/4=(сокращаем на 2) - 21/2

- 21/2*2/5-5/3*18/5

5/3*18/5=(5 и 5 делим на 5)=1/3*18= (18 и 3 делим на 3) 6

21/2*5/2= 21*5/2*2=105/4

-105/4+6/1=-105/4 + 6*4/1*4=-105/4+24/4=-105+24/4= -129/4

Answer 2

Let's break down the expression step by step:

1. Calculate 25 - 43/4: 25 - 43/4 = 100/4 - 43/4 = (100 - 43)/4 = 57/4

2. Divide 57/4 by 0.4: (57/4) / 0.4 = (57/4) * (1/0.4) = (57/4) * (10/4) = (57 * 10) / (4 * 4) = 570/16

3. Calculate 2 2/3 - 1 2/3: 2 2/3 - 1 2/3 = (2 + 2/3) - (1 + 2/3) = 2 + 2/3 - 1 - 2/3 = (2 - 1) + (2/3 - 2/3) = 1 + 0 = 1

4. Divide 1 by 5/18: 1 / (5/18) = 1 * (18/5) = (1 * 18) / 5 = 18/5

So, the final result of the expression is 570/16 ÷ 18/5, which can be simplified as follows:

First, find the reciprocal of 18/5, which is 5/18.

Now, multiply 570/16 by 5/18:

(570/16) * (5/18) = (570 * 5) / (16 * 18) = 2850/288

Finally, simplify the fraction:

2850/288 = (2850 ÷ 6) / (288 ÷ 6) = 475/48

So, the final result of the expression is 475/48.