Question

1 3/5:0,8+(-1 1/2)^3*0,8

Answer 1

1 3/5:0.8+(-1 1/2)^3*0,8 = 8/5 : 8/10 + (-3/2)^3* 8/10 = 2 - 9/8 * 8/10 = 2 - 9/10 = 2 - 0,9 = 1,1

Answer 2

Решение внизу на фото

Answer 3

Let's break down the expression step by step:

1. First, calculate 1 3/5: 1 3/5 = 5/5 + 3/5 = 8/5

2. Next, calculate (-1 1/2)^3: (-1 1/2)^3 = (-3/2)^3 = -27/8

3. Now, multiply the result from step 2 by 0.8: (-27/8) * 0.8 = -21.6/8

4. Finally, add the result from step 1 to the result from step 3: (8/5) + (-21.6/8)

To add these fractions, you need to find a common denominator, which is 40 in this case:

(8/5) * (8/8) = 64/40 (-21.6/8) * (5/5) = -108/40

Now you can add them:

(64/40) + (-108/40) = (64 - 108) / 40 = -44/40

You can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 4:

(-44/40) ÷ (4/4) = -11/10

So, the final result of the expression is -11/10 or -1.1 when expressed as a decimal.