86/72+6/8=86/72+54/72=130/72
七十二分之八十六加八分之六等于1又68/7286/72+6/8.=86/72+54/72啊。=140/72.=1又68/72
答案是十八分之三十五86/72+6/8=86/72+54/72=140/72=35/18
