19又5/6+199又5/6+1999又5/6+19999又5/6+2/3怎样简算

19又5/6+199又5/6+1999又5/6+19999又5/6+2/3=19+(5/6)+199+(5/6)+1999+(5/6)+19999+(5/6)+(2/3)=(5/6)*4+(2/3)+19999+1999+199+19=4+19999+1999+199+19=1+19999+1+1999+1+199+1+19=20000+2000+200+20=22220.