от Toshko96 » 19 Ное 2010, 15:06
[tex][15,8.(-\frac{2}{5})+7.(8.0,2-0,7)].(5-8.\frac{3}{5})[/tex]
[tex][\frac{158}{10}.(-\frac{2}{5})+7.(8.\frac{2}{10}-\frac{7}{10})].(5-8.\frac{3}{5})[/tex]
[tex][(-\frac{158}{25})+7.(\frac{8}{5}-\frac{7}{10})].(5-8.\frac{3}{5})[/tex]
[tex][(-\frac{158}{25})+7.(\frac{16}{10}-\frac{7}{10})].(5-8.\frac{3}{5})[/tex]
[tex][(-\frac{158}{25})+7.\frac{9}{10}].(5-8.\frac{3}{5})[/tex]
[tex][(-\frac{158}{25})+\frac{63}{10}].(5-8.\frac{3}{5})[/tex]
НОК на 25 и 10 e 50
[tex][(-\frac{316}{50})+\frac{315}{50}].(5-8.\frac{3}{5})[/tex]
[tex](\frac{315}{50}-\frac{316}{50}).(5-8.\frac{3}{5})[/tex]
НОК на 1 и 5 е 5
[tex]-\frac{1}{50}.(\frac{25}{5}-\frac{24}{5})[/tex]
[tex]-\frac{1}{50}.\frac{1}{5}[/tex]
[tex]-\frac{1}{250}[/tex]