3.5/4.8/7/8+4.4/3.9*3*1/3
=3.5:4.8:7:8+4.4:3.9*3*3=3,5 +4.4*3= 3.5 +4.43 =3.5 + 4.4 =1899
4.8*7*8 3.9*3 4.8*7*8 3.93 4.8*7*8 3.9 1664