Question

(2 1/2 )в кубе умноженная на 8 /15 -5/9 =???

Answer 1

$(2frac{1}{2})^{3}*frac{8}{15}-frac{5}{9}=(frac{5}{2})^{3}*frac{8}{15}-frac{5}{9}=frac{125}{8}*frac{8}{15}-frac{5}{9}=frac{75}{9}-frac{5}{9}=frac{70}{9}=7frac{7}{9}$