a.0.24:4+15,3:5+12,4:8+0,15:30= 4,675
b.(1.24+3.56):16= 0,3
c.2.28+3.72:12= 2,59
d.3.6+2.4:(11,7-3,7)=3,9
a.0.24:4+15,3:5+12,4:8+0,15:30= 4,675
b.(1.24+3.56):16= 0,3
c.2.28+3.72:12= 2,59
d.3.6+2.4:(11,7-3,7)=3,9