Question

(2-15)•(-4,2)+(-2 4/5): (14)-(2 2/5)+ (-1,69):(-0,13)

Answer 1

.......б.. ...........

Answer 2

Let's break down the expression step by step:

1. (2-15) • (-4,2) = (-13) • (-4,2) = (52, -26)

2. (-2 4/5) ÷ (14) = (-14/5) ÷ 14 = (-14/5) / 14 = (-14/5) * (1/14) = -2/5

3. (-1,69) ÷ (-0,13) = (169/100) ÷ (-13/100) = (169/100) * (-100/13) = -169/13

Now, let's put it all together:

(52, -26) + (-2/5) + (-169/13)

To add these together, you need a common denominator for the fractions, which is 65. So, let's rewrite the fractions with a common denominator:

(52, -26) + (-26/65) + (-2535/65)

Now, add the fractions:

(52, -26) + (-26/65) + (-2535/65) = (52, -26) + (-26/65 - 2535/65) = (52, -26) + (-2561/65)

To add the fractions, you'll need a common denominator again, which is 65:

(52, -26) + (-2561/65) = (52, -26) + (-2561/65 * 65/65) = (52, -26) + (-2561/65)

Now, add the two components separately:

Component 1: 52 + 0 = 52 Component 2: -26 - 2561/65 = -1690/65 - 2561/65 = -4251/65

So, the final result is:

(52, -4251/65)