Question

-2 1/6:(-2,6)+(-3 4/15•6/7)-3=​

Answer 1

Ответ:

$\frac{19}{30}$

Пошаговое объяснение:

$-2\frac{1}{6} +(-2,6)+(3\frac{4}{15} * \frac{6}{7})-3 = -\frac{13}{6} : (-\frac{13}{5})+(\frac{49}{15} * \frac{6}{7})-3=\frac{13}{6} * \frac{5}{13} + (\frac{7}{5}*2)-3=\frac{1}{6} * 5 + \frac{14}{5} -3= \frac{5}{6} + \frac{14}{5} -3 = \frac{25+84-90}{30} = \frac{19}{30}$

Answer 2

Ответ:

-2 1/6:(-2,6)+(-3 4/15*6/7)-3=-13/6:(-13/5):(-49/15*6/7) - 3=13/6*5/13+(-7/5*2) - 3=5/6-14/5-3=149/30

Пошаговое объяснение:

*- це множення

Answer 3

To solve this expression step by step, follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right).

Here's how you can solve the expression:

1. Start with the innermost operation in parentheses: (-2,6) is not clear. I assume you meant -2.6 (a decimal number).

2. Now, simplify the expression inside the parentheses: -2.6 + (-3 * 4/15 * 6/7) - 3

3. Next, perform the multiplications and divisions within the parentheses: -2.6 + (-3 * (4/15) * (6/7)) - 3

4. Calculate each part separately: -2.6 + (-3 * 4/15 * 6/7) - 3 = -2.6 + (-12/15 * 6/7) - 3

5. Continue simplifying the multiplication within the parentheses: -2.6 + (-12/15 * 6/7) - 3 = -2.6 + (-72/105) - 3

6. Now, add and subtract the fractions: -2.6 - 72/105 - 3

7. Find a common denominator for -2.6 and -3, which is 105: (-2.6 * 105/105) - (3 * 105/105) - 72/105

8. Perform the multiplications: (-273/105) - (315/105) - 72/105

9. Subtract the fractions: (-273/105) - (315/105) - (72/105)

10. Finally, add the numerators together: (-273 - 315 - 72) / 105

11. Combine the numerators: (-660) / 105

12. Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor (which is 15): (-44) / 7

So, the simplified result of the expression is -44/7.