Tính: \[\frac.\frac{1}{{{4^2}}}.3 + \left( {\frac{8} - \frac.\frac{5}} \right):\frac\]

Trả lời:

\[\frac.\frac{1}{{{4^2}}}.3 + \left( {\frac{8} - \frac.\frac{5}} \right):\frac\]

\[ = \frac{{{{15.4}^2}}} + \left( {\frac{8} - \frac.\frac{5}} \right).\frac\]

\[ = \frac + \left( {\frac{8} - \frac{1}{4}} \right).\frac\]

\[ = \frac{7} + \left( {\frac - \frac} \right).\frac\]

\[ = \frac{7} + \frac.\frac\]

\[ = \frac{7} + \frac.\frac\]

\[ = \frac{7} + \frac{3}\]

\[ = \frac{7} + \frac{6}\]

\[ = \frac\]

Đáp án cần chọn là: D