nikolica 2) 0,75 +1/5 = 0,75+0,20 = 0,95
4) 6,7+108/25 = 6,7+4,32 = 11,02
6) 18,7-81/4 = 18,7-20,25 =-1,55

mikael2 2.  
0.75+0.2=0.95
4.  
6.7+4 8/25=6.7+4.32=11.02
6.
18.7-20 1/4=18.7-20.25=-1.55