tolong jawab ya sama caaranya 1.3/7-4/5-1/2 2.1 2/5+1/6-2/3 3.5 2/4+3 1/2-2/5 4.3 1/2+2 1/4-4 2/3 5.3 4/7+5/6-2 5/8

[tex]1.) \\ \frac{3}{7} - \frac{4}{5} - \frac{1}{2} \\ = \frac{30 -56 - 35 }{70} \\ = - \frac{61}{70} \\ \\ 2) \\ 1 \frac{2}{5} + \frac{1}{6} - {2}{3} \\ = \frac{7}{5} + \frac{1}{6} - \frac{2}{3} \\ = \frac{42 + 5 - 20}{30} \\ = \frac{27}{30} = \frac{9}{10} \\ 3.) \\ 5 \frac{2}{4} + 3 \frac{1}{2} - \frac{2}{5} \\ = \frac{22}{4} + \frac{7}{2} - \frac{2}{5} \\ = \frac{110 + 70 - 8}{20} \\ = \frac{172}{20} = 8 \frac{12}{20} \\ = 8 \frac{3}{5} [/tex]