Respuesta :

keziakh004

Answer:

[tex]21\frac{3}{8} +(-51\frac{1}{4} )=21\frac{3}{8} -51\frac{1}{4} =-\frac{39}{8}[/tex]

[tex]-65\frac{2}{5} +103=77[/tex]

[tex]-34.528+78.12=43.592[/tex]

[tex]863.78+(-1024.01)=863.78-1024.01=-160.23[/tex]