\(\,\frac{{19}}{{12}} - \frac{7}{{22}}:\frac{{21}}...

Câu hỏi: \(\,\frac{{19}}{{12}} - \frac{7}{{22}}:\frac{{21}}{{11}}\)                                      

A \(\frac{{17}}{{12}}\)

B \(\frac{{-17}}{{12}}\)

C \(\frac{{17}}{{15}}\)

D \(\frac{{7}}{{12}}\)