Question

выполните действия.ПОЖАЛУЙСТА!!

Answer 1

$\frac{5}{19} + \frac{6}{19} = \frac{11}{19 } \\ \\ \frac{7}{13} - \frac{4}{13} = \frac{3}{13} \\ \\ \frac{19}{25} + \frac{4}{25} - \frac{22}{25} = \frac{1}{25} \\ \\ \frac{34}{39} - \frac{15}{39} - \frac{8}{39} = \frac{11}{39}$

Answer 2

$\displaystyle \tt 1). \ \ \frac{5}{19}+\frac{6}{19}=\frac{5+6}{19}=\frac{11}{19};\\\\\\2). \ \ \frac{7}{13}-\frac{4}{13}=\frac{7-4}{13}=\frac{3}{13};\\\\\\3). \ \ \frac{19}{25}+\frac{4}{25}-\frac{22}{25}=\frac{19+4-22}{25}=\frac{1}{25};\\\\\\4). \ \ \frac{34}{39}-\frac{15}{39}-\frac{8}{39}=\frac{34-15-8}{39}=\frac{11}{39};$