[tex](\frac{5}{12} - \frac{3}{18}) \times \frac{4}{1} + \frac{1}{11} + ( \frac{4}{3} - \frac{1}{1}) \times3 = \\ ( \frac{15}{36} - \frac{6}{36} ) \times \frac{4}{1} + \frac{1}{11} + ( \frac{4}{3} - \frac{3}{3}) \times 3 = \\ \frac{9}{36} \times \frac{4}{1} + \frac{1}{11} + \frac{1}{3} \times 3 = \\ \frac{1}{1} + \frac{1}{11} + \frac{1}{3} \times \frac{3}{1} = \\ \frac{1}{1} + \frac{1}{11} + \frac{1}{1} = \\ \frac{11}{11} + \frac{1}{11} + \frac{1}{1} = \\ \frac{12}{11} + \frac{1}{1} = \\ \frac{12}{11} + \frac{11}{11} = \frac{1}{11} [/tex]
