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

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