Cho \(A = \frac{{6,{{62}^2} + 5,4.3,38 + 1,22.3,38...

Câu hỏi: Cho \(A = \frac{{6,{{62}^2} + 5,4.3,38 + 1,22.3,38}}{{33,1.7,1 + 33,1.12,9}}\). Tìm B biết 15%.B = A. 

A. \(\frac{1}{2}\)

B. \(\frac{2}{3}\)

C. \(\frac{3}{2}\)

D. \(\frac{5}{2}\)