1. (4 1/9*3,3+126 13/30)*1,5:60=3,5
1. 37/9*3 3/10= 37/9*33/10=37/3*11/10=407/30=13 17/30
2. 13 17/30+126 13/30=139 30/30=140
3. 140*1,5=210
4. 210:60=3,5
2. (2,07*4 4/9-7,75)*80:23,2=5
1. 2 7/100*4 4/9=207/100*40/9=23/5*2/1=46/5=9,2
2. 9,2-7,75=1,45
3. 1,45*80=116
4. 116:23,2=5
3. (36,3*7/11+2,9):0,52*19=950
1. 36 3/10*7/11=363/10*7/11=33/10*7/1=231/10=23,1
2. 23,1+2,9=26
3. 26:0,52=50
4. 50*19=950
4. (17 3/22:29/66-36,75)*60=135
1. 377/22:29/66=377/22*66/29=13/1*3/1=39
2. 39-36,75=2,25
3. 2,25*60=135