2) Вычислите: а) \(\frac{5}{4} + \frac{3}{6}\)

а) \(\frac{5}{4} + \frac{3}{6} = \frac{5}{4} + \frac{1}{2} = \frac{5}{4} + \frac{2}{4} = \frac{5+2}{4} = \frac{7}{4} = 1\frac{3}{4}\)