Question

-2/3:(-7/9) вычислить​

Answer 1

Пошаговое объяснение:

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Answer 2

To calculate the expression (-2/3) : (-7/9), you should remember that dividing by a negative number is the same as multiplying by its reciprocal (the inverse). The reciprocal of a number is obtained by flipping the numerator and denominator.

So, we have:

(-2/3) : (-7/9) = (-2/3) * (9/-7)

Now, multiply the numerators and denominators:

Numerator = (-2) * 9 = -18 Denominator = 3 * (-7) = -21

Therefore, the result is -18/-21. To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 3:

(-18/-21) ÷ 3 = -6/-7

Finally, the simplified result is:

-6/7