\(B = \frac{{12}}{5}.\frac{7}{{13}} + \frac{{12}}{...

Câu hỏi: \(B = \frac{{12}}{5}.\frac{7}{{13}} + \frac{{12}}{5}.\frac{6}{{13}} + \frac{8}{5}\)

A \(B=5\)

B \(B=7\)

C \(B=4\)

D \(B=-2\)