Odpowiedź:
[tex]\dfrac{[4\frac{3}{4}-(-2\frac{3}{5})]:2\frac{5}{8}}{-0,7}=\dfrac{(4\frac{3}{4}+2\frac{3}{5}):\frac{21}{8}}{-0,7}=\dfrac{(4\frac{15}{20}+2\frac{12}{20}):\frac{21}{8}}{-0,7}=\dfrac{6\frac{27}{20}:\frac{21}{8}}{-0,7}=\\\\\\=\dfrac{\frac{\not147^7}{\not20_{5} }*\frac{\not8^2}{\not21_{1}}}{-0,7}=\dfrac{\frac{14}{5}}{-0,7}=\dfrac{2\frac{4}{5}}{-0,7}=\dfrac{2,8}{-0,7}=-4[/tex]
