(1 1/5*0,8-1,2^2):3,2=-3/20
1) 1 1/5*0,8=6/5*8/10=48/50
2) 48/50-1,2²=48/50-1,44=48/50-144/100=96/100-144/100=-48/100=-24/50
3) -24/50:3,2=-24/50:32/10=-24/50*10/32=-3/20
(1 1/5*0,8-1,2^2):3,2=-3/20
1) 1 1/5*0,8=6/5*8/10=48/50
2) 48/50-1,2²=48/50-1,44=48/50-144/100=96/100-144/100=-48/100=-24/50
3) -24/50:3,2=-24/50:32/10=-24/50*10/32=-3/20