Question

ДАЮ 50 БАЛЛОВ, СРОЧНО!
(1/4)-2²-(-3/8)⁰+(2/3)³:7/9​

Answer 1

Ответ ........................................................................................................

Answer 2

Объяснение:

$( \frac{1}{4} ) - 2 {}^{2} - ( - \frac{3}{8} ) {}^{0} + ( \frac{2}{3} ) {}^{3} \div \frac{7}{9} = \frac{1}{4}-4-\left(-\frac{3}{8}\right)^{0}+\frac{\left(\frac{2}{3}\right)^{3}}{\frac{7}{9}} =-\frac{15}{4}-\left(-\frac{3}{8}\right)^{0}+\frac{\left(\frac{2}{3}\right)^{3}}{\frac{7}{9}} =-\frac{15}{4}-1+\frac{\left(\frac{2}{3}\right)^{3}}{\frac{7}{9}} =-\frac{19}{4}+\frac{\left(\frac{2}{3}\right)^{3}}{\frac{7}{9}} =-\frac{19}{4}+\frac{\frac{8}{27}}{\frac{7}{9}} =-\frac{19}{4}+\frac{8}{27}\times \left(\frac{9}{7}\right) =-\frac{19}{4}+\frac{8}{21} =-\frac{367}{84} - 4 \frac { 31 } { 84 } =$