Question

Обчисліть: 1) 3 1/2 + (-8,5) - (-4,42); 2) -6.02 + 23,6 - (-1 31/50); 3) -1 - 3/10 + (-0,25) - 1/2; 4) 4 - 4/15 - (-1 1/3) + (-1/6); 5) 0,25 - |-3,6| + (-5) - |-1/4|; 6) 12,4 - |-63,4| - |-6,01|.

Answer 1

Лох

Щевщанвщнащнащнвнзаанарсзрсрчщ

Answer 2

To compute the given expressions, follow these steps:

1. $3 \frac{1}{2} + (-8.5) - (-4.42)$

To add fractions, find a common denominator. Here, the common denominator is 2.

$3 \frac{1}{2} = \frac{7}{2}$

Now, the expression becomes:

$\frac{7}{2} - 8.5 + 4.42$

Now, add the numbers:

$\frac{7}{2} - 8.5 + 4.42 = -4.08$

2. $-6.02 + 23.6 - (-1 \frac{31}{50})$

To subtract fractions, find a common denominator. Here, the common denominator is 50.

$-1 \frac{31}{50} = -\frac{81}{50}$

Now, the expression becomes:

$-6.02 + 23.6 + \frac{81}{50}$

Now, add the numbers:

$-6.02 + 23.6 + \frac{81}{50} = 17.58$

3. $-1 - \frac{3}{10} + (-0.25) - \frac{1}{2}$

The expression becomes:

$-1 - \frac{3}{10} - 0.25 - \frac{1}{2}$

Now, add the numbers:

$-1 - \frac{3}{10} - 0.25 - \frac{1}{2} = -1 - 0.3 - 0.25 - 0.5 = -2.05$

4. $4 - \frac{4}{15} - (-1 \frac{1}{3}) + (-\frac{1}{6})$

To subtract fractions, find a common denominator. Here, the common denominator is 15.

$-1 \frac{1}{3} = -\frac{4}{3}$

Now, the expression becomes:

$4 - \frac{4}{15} + \frac{4}{3} - \frac{1}{6}$

Find a common denominator for these fractions. Here, the common denominator is 30.

Now, the expression becomes:

$4 - \frac{8}{30} + \frac{40}{30} - \frac{5}{30}$

Now, add the numbers:

$4 - \frac{8}{30} + \frac{40}{30} - \frac{5}{30} = 4 + \frac{27}{30} = 4 + \frac{9}{10} = 4.9$

5. $0.25 - |-3.6| + (-5) - |-1/4|$

Evaluate the absolute values first:

$|-3.6| = 3.6$

$|-\frac{1}{4}| = \frac{1}{4}$

Now, the expression becomes:

$0.25 - 3.6 - 5 - \frac{1}{4}$

Now, add the numbers:

$0.25 - 3.6 - 5 - \frac{1}{4} = -8.35$