a) \(\frac{5}{8} + \frac{{13}}{{24}}\)
Giải thích
a) \(\frac{5}{8} + \frac{{13}}{{24}}\) \(\begin{array}{l} = \frac{{15}}{{24}} + \frac{{13}}{{24}}\\ = \frac{{28}}{{24}} = \frac{7}{6}\end{array}\) | b) \(\frac{5}{3} \times \frac{3}{7}\) \( = \frac{5}{7}\) | c) \(\frac{8}{9} - \frac{{14}}{{18}}\) \( = \frac{8}{9} - \frac{7}{9} = \frac{1}{9}\) | d) \(\frac{5}{{12}}:\frac{5}{4}\) \(\begin{array}{l} = \frac{5}{{12}} \times \frac{4}{5}\\ = \frac{1}{3}\end{array}\) |