Question

13.8 +(-5.7)= 7.14+(-12.4)= -1+0.329= -8/15+1= -11.2+(-3.23) -7/9+(-2целые 2/9) помогите! срочно

Answer 1

Ответ:

1.12.7

2.-13.6

3.7.8

4.9.7

5.0.7

Answer 2

Ответ:

1.12 7

7.17 4

1.43 5

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Пошаговое объяснение:

Ен сонндағы үшеуін білмецмін

Answer 3

To solve the given expressions, let's break them down step by step:

1. 13.8 - 5.7: Subtracting 5.7 from 13.8 gives us 8.1. So, 13.8 - 5.7 = 8.1.

2. 7.14 - 12.4: Subtracting 12.4 from 7.14 gives us -5.26. So, 7.14 - 12.4 = -5.26.

3. -1 + 0.329: Adding -1 and 0.329 gives us -0.671. So, -1 + 0.329 = -0.671.

4. -8/15 + 1: To add fractions, we need a common denominator. The common denominator for 15 and 1 is 15. So, we can rewrite -8/15 as -8/15 * 1/1. Adding the fractions gives us -8/15 + 15/15 = 7/15. Therefore, -8/15 + 1 = 7/15.

5. -11.2 - 3.23: Subtracting 3.23 from -11.2 gives us -14.43. So, -11.2 - 3.23 = -14.43.

6. -7/9 + (-2 целые + 2/9): To add fractions, we need a common denominator. The common denominator for 9 and 1 is 9. So, we can rewrite -7/9 as -7/9 * 1/1. Adding the fractions gives us -7/9 + 9/9 = 2/9. Therefore, -7/9 + (-2 целые + 2/9) = 2/9.

Now, let's add all the results together:

8.1 + (-5.26) + (-0.671) + (7/15) + (-14.43) + (2/9) = -4.52.

Therefore, the final result is -4.52.

I hope this helps! Let me know if you have any further questions.