Решите пример номер 993(1,3,5)

1) (14/30-5/30) +12/30 =9/30+12/30= 21/30 2) (16/18-15/18)+12/18 = 1/18+12/18=13/18 3) (14/36-3/36)+30/36 = 11/36+30/36=41/36=1 5/36

1) [latex]( \frac{7}{15} - \frac{1}{6} )+\frac{2}{5} = \frac{26}{30}- \frac{5}{30} = \frac{21}{30}[/latex] 3) [latex]( \frac{8}{9} -\frac{5}{6} )+ \frac{2}{3} =( \frac{16}{18}- \frac{15}{18} )+ \frac{12}{18}= \frac{13}{18} [/latex] 5) [latex] (\frac{7}{18} - \frac{1}{12}) + \frac{5}{6}= (\frac{14}{36} - \frac{3}{36}) + \frac{30}{36}= \frac{41}{36} [/latex]