-5/8*1 7/25 cum se face rezolvarea?

Răspuns :

[tex]\frac{-5}{8}*1 \frac{7}{25} =\frac{-5}{8}*\frac{25+7}{25} =\frac{-5}{8}*\frac{32}{25} =\frac{-4}{5}[/tex]

1 7/25 = (25+7)/25 = 32/25

(-5/8)*(32/25) = (-5*32)/(8*25) = -160/200 = -4/5 (simplificare cu 40)