Question

Срочно помогите, пример 1008

Answer 1

1)$3 frac{1}{3}+2,5= frac{10}{3}+ frac{5}{2}= frac{20+15}{6}= frac{35}{6}$

2)$frac{5}{2}- frac{4}{3}= frac{15-8}{6}= frac{7}{6}$

3)$frac{35}{6}* frac{6}{7}=5$

4)$frac{23}{5}- frac{7}{3}= frac{69-35}{15}= frac{34}{15}$

5)$frac{23}{5} + frac{7}{3}= frac{69+35}{15}= frac{104}{15}$

6)$frac{34}{15}* frac{15}{104} = frac{34}{104}$

7)$5*5,2=26$

8)$frac{34}{104}*26= frac{34}{4}$

9)$frac{1}{7}- frac{125}{1000}= frac{1}{7}- frac{1}{8}= frac{8-7}{56}= frac{1}{56}$

10)$frac{5}{100} *56= frac{1}{20}*56= frac{1}{5} *14= frac{14}{5}$

11)$frac{14}{5}+ frac{57}{10} = frac{28+57}{10}= frac{85}{10}= frac{17}{2}$

12)$frac{34}{4}* frac{2}{17}= frac{2}{2}=1$