a=124/1000+43-1054/100*2
b=1247/100+(325/10+143/10*2)
a)
a=(124+43000)/1000-2108/100=(124+43000-21080)/1000=22044/1000=22,044
b=1247/100 +(325+286)/10=1247/100+611/10=(1247+6110)/100=7357/100=73,57
b)
a+b= 22,044+73,57=95,614
a-b=22,044-73,57=-51,526
=> a+b > a-b