20:5×3:3×5:7,2+4-8:201
20:5×3:3×5:7,2+4-8:201= 4×3:3*5:7.2+4-8:201= 12:4*5:7.2+4-8:201= 15:7,2+4-8:201=6,7379767828
44263/603