So sánh 2 phân số:
A=2009*2009+2008/2009*2009+2009 va B=2009*2009+2009/2009*2009+2010
tính 2010*2010-2009*2009+2008*2008-........+2*2-1*1
2010+2009-2009/2008+1/2008+2009
tính:
C=2007/2008 x 1/2009 + 2007/2008 : 2009/2008 + 1/2008
Bài 1 ; Cho a=2008/2009:b=2009/2008:c=1/2009:d=2007/2008. Tính a-b+c+d
2007/2008.1/2009 + 2007/2008 +2009/2008+1/2008
2007/2008×1/2009+2007/2009÷2009/2008+1/2008=
Co ai lam on giup toi voi
cho a =2008/2009;b=2009/2008;c=1/2009;d=2007/2008.tính a-b+c+d
Cho a=2008/2009 b=2009/2008 c=1/2009 d=2007/2008. Tính a-b+c+d
