Question

Вычислить:
$( \frac{2}{3} \div 3 - 1) \times {1.5}^{2} - 0.25$
Объясните как решить!))

Answer 1

Решение задания приложено

Answer 2

(2/3) :3 = (2/3)*(1/3) = 2/9

(2/9) - 1 = (2/9) - (9/9) = -7/9

1.5 = 3/2 ---> 1.5² = (3/2)*(3/2) = 9/4

(-7/9)*(9/4) = -7/4

(-7/4) - 0.25 = (-7/4) - (1/4) = -8/4 = -2