[tex]a) \frac{3}{4} + \frac{3}{4}*\frac{4}{3}= \frac{3}{4}+1=1\frac{3}{4}[/tex]
[tex]b) 3\frac{7}{10}- 1\frac{2}{10}:\frac{1}{2}= 3\frac{7}{10}- \frac{12}{10}*\frac{2}{1}=3\frac{7}{10}-\frac{24}{10}=\frac{37}{10}-\frac{24}{10}=\frac{13}{10}=1\frac{3}{10}[/tex]
[tex]c) 5*\frac{3}{10}+ 3 *\frac{2}{5}=\frac{3}{2}+\frac{6}{5}=\frac{15}{10}+\frac{12}{10}=\frac{27}{10}= 2\frac{7}{10}[/tex]
[tex]d) 1\frac{1}{5}:\frac{1}{3}-1\frac{2}{5}*\frac{2}{7}=\frac{6}{5}*\frac{3}{1}-\frac{7}{5}*\frac{2}{7}=\frac{18}{5}+\frac{2}{5}= \frac{20}{5}= 4[/tex]
Mam nadzieję, że wszytko jest dobrze
