Question

Вычеслите: 20 5\7 : (-4)

Answer 1

Ответ:

-5 5/28

Пошаговое объяснение:

20 5/7:(-4)= 145/7*(-1/4)= -145/28= -5 5/28

Answer 2

To evaluate the expression, we need to perform division:

20 5/7 ÷ (-4)

To divide a mixed number, we can convert it into an improper fraction first:

20 5/7 = (20 * 7 + 5) / 7 = (140 + 5) / 7 = 145 / 7

Now, the expression becomes:

145 / 7 ÷ (-4)

Dividing by a negative number is the same as multiplying by its reciprocal (1/(-4) = -1/4):

(145 / 7) * (-1/4)

Now, multiply the numerators and denominators:

Numerator: 145 * (-1) = -145 Denominator: 7 * 4 = 28

The final result is:

-145 / 28