[tex]f)~~-1,5:(-2\frac13)=-\frac32:(-\frac73)=\frac32\cdot\frac37=\frac9{14}\\g)~~-1\frac34+7\frac15=-1\frac{15}{20}+7\frac4{20}=5\frac{11}{20}\\h)~~-2\frac38-\frac1{12}=-2\frac9{24}-\frac2{24}=-2\frac{11}{24}\\i)~~-3,7+4,5=0,8\\j)~~-13,1-2,5=-15,6\\[/tex]
[tex]k)~~17,21-20,03=-2,82\\l)~~12,5+3,75=16,25\\m)~~-0,82\cdot(-0,3)=0,82\cdot0,3=0,246~~\text{- obliczenia wykonac pisemnie}\\n)~~0,7\cdot(-0,92)=-(0,7\cdot0,92)=0,644~~\text{- obliczenia wykonac pisemnie}\\o)~~-0,75-1\frac23=-\frac34-1\frac25=\frac9{12}-1\frac8{12}=-1\frac{17}{12}=-2\frac5{12}[/tex]
