[tex]2 \frac{3}{4} - 1 \frac{1}{4} + \frac{3}{5} = \frac{11}{4} - \frac{5}{4} + \frac{3}{5} \\ = \frac{11 - 5}{4} + \frac{3}{5} \\ = \frac{6}{4} + \frac{3}{5} \\ = \frac{30}{20} + \frac{12}{20} \\ = \frac{30 + 12}{20} \\ = \frac{42}{20} \\ = \frac{21}{10} \\ = 2 \frac{1}{10} [/tex]
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[tex]2 \frac{3}{4} - 1 \frac{1}{4} + \frac{3}{5} = \frac{11}{4} - \frac{5}{4} + \frac{3}{5} \\ = \frac{11 - 5}{4} + \frac{3}{5} \\ = \frac{6}{4} + \frac{3}{5} \\ = \frac{30}{20} + \frac{12}{20} \\ = \frac{30 + 12}{20} \\ = \frac{42}{20} \\ = \frac{21}{10} \\ = 2 \frac{1}{10} [/tex]