Question

Пж ооочень срочно пж пж

Answer 1

а) $\frac{12}{13} +\frac{4}{16} +\frac{1}{13}+ \frac{3}{13}=(\frac{12}{13} +\frac{1}{13} )+(\frac{4}{16} +\frac{3}{16} )=1+\frac{7}{16} =1\frac{7}{16}$

б) $(\frac{13}{50} +\frac{8}{27} )+(\frac{6}{27} +\frac{37}{50} )=(\frac{13}{50} +\frac{37}{50})+(\frac{8}{27}  +\frac{6}{27} )=1+\frac{14}{27} =1\frac{14}{27}$

в) $(\frac{28}{33} +\frac{2}{3} )-\frac{28}{33} =(\frac{28}{33}-\frac{28}{33} )+\frac{2}{3} =0+\frac{2}{3} =\frac{2}{3}$

г) $(\frac{6}{7} +\frac{18}{19})-\frac{18}{19} =\frac{6}{7} +(\frac{18}{19} -\frac{18}{19} )=\frac{6}{7}+0=\frac{6}{7}$

д) $\frac{25}{57} -(\frac{2}{57}+ \frac{23}{57} )=\frac{25}{57} -\frac{25}{57}=0$

е) $2-(1\frac{1}{3} +\frac{2}{3} )=2-2=0$