Срочно помогите, пример 1008

1)[latex]3 \frac{1}{3}+2,5= \frac{10}{3}+ \frac{5}{2}= \frac{20+15}{6}= \frac{35}{6} [/latex] 2)[latex] \frac{5}{2}- \frac{4}{3}= \frac{15-8}{6}= \frac{7}{6} [/latex] 3)[latex] \frac{35}{6}* \frac{6}{7}=5 [/latex] 4)[latex] \frac{23}{5}- \frac{7}{3}= \frac{69-35}{15}= \frac{34}{15} [/latex] 5)[latex] \frac{23}{5} + \frac{7}{3}= \frac{69+35}{15}= \frac{104}{15} [/latex] 6)[latex] \frac{34}{15}* \frac{15}{104} = \frac{34}{104} [/latex] 7)[latex] 5*5,2=26[/latex] 8)[latex] \frac{34}{104}*26= \frac{34}{4} [/latex] 9)[latex] \frac{1}{7}- \frac{125}{1000}= \frac{1}{7}- \frac{1}{8}= \frac{8-7}{56}= \frac{1}{56} [/latex] 10)[latex] \frac{5}{100} *56= \frac{1}{20}*56= \frac{1}{5} *14= \frac{14}{5} [/latex] 11)[latex] \frac{14}{5}+ \frac{57}{10} = \frac{28+57}{10}= \frac{85}{10}= \frac{17}{2} [/latex] 12)[latex] \frac{34}{4}* \frac{2}{17}= \frac{2}{2}=1 [/latex]