3.672÷0.08÷2/13+3又17/50×3.95÷0.1-33又2/5÷2又2/9 =3.672÷2/25÷2/13+3.34x3.95÷0.1-33.4x9/20=3.672x25/2x13/2+33.4x3.95-33.4x0.45=3.672x81.25+33.4x(3.95-0.45)=298.35+33.4x3.5=298.35+116.9=415.25
