Question

Обчисліть 1) |-4,3|*|-5,7|; 2) |-7/8|-|5/12|; 3) |-5 1/3|: |9/24|; 4) |-3 2/3|: |4 2/5|; ПОЖАЛУЙСТА ПОМОГИТЕ ЭТО СРОЧНО ДАМ 40 БАЛЛОВ​

Answer 1

Ответ:

1) 24,51

2) 11/24(0,4583)

3) 14,2

4) 5/6(0,83)

Answer 2

1) To calculate the expression |-4.3| * |-5.7|, we need to find the absolute values of -4.3 and -5.7, and then multiply them together.

The absolute value of a number is its distance from zero on the number line. So, the absolute value of -4.3 is 4.3, and the absolute value of -5.7 is 5.7.

Now, we can multiply these absolute values together: 4.3 * 5.7 = 24.51.

Therefore, the value of the expression |-4.3| * |-5.7| is 24.51.

2) To calculate the expression |-7/8| - |5/12|, we need to find the absolute values of -7/8 and 5/12, and then subtract the second absolute value from the first.

The absolute value of a fraction is the absolute value of its numerator divided by the absolute value of its denominator. So, the absolute value of -7/8 is 7/8, and the absolute value of 5/12 is 5/12.

Now, we can subtract these absolute values: 7/8 - 5/12 = 21/24 - 10/24 = 11/24.

Therefore, the value of the expression |-7/8| - |5/12| is 11/24.

3) To calculate the expression |-5 + 1/3| : |9/24|, we need to find the absolute value of -5 + 1/3, and then divide it by the absolute value of 9/24.

The absolute value of a mixed number is the absolute value of its whole number part plus the absolute value of its fractional part. So, the absolute value of -5 + 1/3 is 5 + 1/3 = 16/3.

The absolute value of a fraction is the absolute value of its numerator divided by the absolute value of its denominator. So, the absolute value of 9/24 is 9/24.

Now, we can divide these absolute values: (16/3) : (9/24) = (16/3) * (24/9) = 128/27.

Therefore, the value of the expression |-5 + 1/3| : |9/24| is 128/27.

4) To calculate the expression |-3 + 2/3| : |4 + 2/5|, we need to find the absolute value of -3 + 2/3, and then divide it by the absolute value of 4 + 2/5.

The absolute value of a mixed number is the absolute value of its whole number part plus the absolute value of its fractional part. So, the absolute value of -3 + 2/3 is 3 + 2/3 = 11/3.

The absolute value of a mixed number is the absolute value of its whole number part plus the absolute value of its fractional part. So, the absolute value of 4 + 2/5 is 4 + 2/5 = 22/5.

Now, we can divide these absolute values: (11/3) : (22/5) = (11/3) * (5/22) = 55/66.

Therefore, the value of the expression |-3 + 2/3| : |4 + 2/5| is 55/66.

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