Question

-6,6÷(2целых 4 седьмых +1 седьмая×(-15))- две целых 17 восемьдесят пятых=

Answer 1

Ответ:

-77/5

Пошаговое объяснение:

Answer 2

-77 / 5 )))))))))))))

Answer 3

To simplify the expression, let's start by converting the mixed numbers to improper fractions:

2 целых 4 седьмых = (2 * 7 + 4) / 7 = 18 / 7 1 седьмая = 1 / 7 две целых 17 восемьдесят пятых = (2 * 85 + 17) / 85 = 187 / 85

Now, let's solve the expression step by step:

-6,6 ÷ (18 / 7 + 1/7 * (-15)) - 187 / 85

Next, simplify the inner expression:

-6,6 ÷ (18 / 7 - 15/7) - 187 / 85 -6,6 ÷ (3 / 7) - 187 / 85

Now, divide -6.6 by (3 / 7):

(-6.6) / (3 / 7) = (-6.6) * (7 / 3) = -6.6 * 7 / 3 = -46.2 / 3 = -15.4

Finally, subtract 187 / 85 from the result:

-15.4 - 187 / 85

To subtract fractions, find a common denominator first:

The common denominator for 85 and 3 is 255 (85 * 3).

Convert both fractions to have a common denominator:

-15.4 = -15.4 * (85 / 85) = -1309 / 85 187 / 85 (already in the common denominator)

Now, subtract the fractions:

-1309 / 85 - 187 / 85 = -1496 / 85

So, the simplified expression is:

-1496 / 85