5/9+1/6+3/4= ? Скажите плиз

[latex] \frac{5}{9} + \frac{1}{6} +\frac{3}{4} =1\frac{17}{36}[/latex] [latex]1) \frac{5}{9}+ \frac{1}{6} = \frac{10}{18} + \frac{3}{18} = \frac{13}{18} [/latex] [latex]2) \frac{13}{18} + \frac{3}{4} = \frac{26}{36} + \frac{27}{36}= \frac{53}{36}= 1\frac{17}{36} [/latex]