0.84:2.1+3.5*0.18-0.08=0.4+0.63-0.08=1.03-0.08=0.95 1) 0.84:2.1=0.4 2) 3.5*0.18=0.63 3)0.4+0.63=1.03 4)1.03-0.08=0.95