Răspuns :
[tex]a=305,7-105,27=200,43;[/tex]
[tex]b=19,2-17,02+137,34=2,18+137,34=139,52;[/tex]
[tex]a+b=200,43+139,52=339,95;[/tex]
[tex]b=19,2-17,02+137,34=2,18+137,34=139,52;[/tex]
[tex]a+b=200,43+139,52=339,95;[/tex]