Odpowiedź:
[tex]a)(\frac{2}{3}+1\frac{4}{5}):0,1=[/tex]
[tex](\frac{10}{15}+1\frac{12}{15}):\frac{1}{10}=1\frac{22}{15}*10=\frac{37}{15}*10=\frac{370}{15}=24\frac{10}{15}=24\frac{2}{3}[/tex]
[tex]b)-1\frac{4}{5}+\frac{1}{3}:0,2=[/tex]
[tex]-\frac{9}{5}+\frac{1}{3}:\frac{1}{5} =-\frac{9}{5}+\frac{1}{3}*5=-\frac{27}{15}+\frac{25}{15}=-\frac{2}{15}[/tex]
[tex]c)\frac{4}{10}:(9,8+(-7\frac{4}{5})=\frac{2}{5}:(9\frac{8}{10}-7\frac{8}{10)}=\frac{2}{5}:2=\frac{2}{5}*\frac{1}{2}=\frac{1}{5}[/tex]
[tex]d)0,5:(-3\frac{5}{6}-1,75)=[/tex]
[tex]\frac{1}{2}:(-3\frac{500}{600}-1\frac{450}{600})=\frac{1}{2}:(-4\frac{19}{12})=\frac{1}{2}:(-\frac{67}{12})=\frac{1}{2}*(-\frac{12}{67}=-\frac{6}{67}[/tex]
Szczegółowe wyjaśnienie:
