\(1-\frac{2009}{2011}=\frac{2}{2011};1-\frac{19}{21}=\frac{2}{11}\)
Mà \(\frac{2}{2011}\frac{19}{21}\)
\(1-\frac{2009}{2011}=\frac{2}{2011};1-\frac{19}{21}=\frac{2}{11}\)
Mà \(\frac{2}{2011}\frac{19}{21}\)
so sanh hai phan so -31/19 va -21/29
Bài 1: So sanh biểu thức A với 4 biết :A= 2010 /2009+ 2011 /2010+ 2012/ 2011+ 2009/2012
So sanh 2 phan so
2009×2009+2008/2009×2009+2009 va 2009×2009+2009/2009×2009+2010
So sanh : 2008/2009 va 2009/2010
Giup mk voiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
so sanh 2009`̉10+2009̣̉ va 2010
khong quy dong TS va MS so sanh hai phan so 47/15 va 65/21
so sanh hai phan so 47/15 va 65/21
Bai 1 :Tinh nhanh
A= 3 / 5 x 8 + 3 / 8 x 11 + 3 / 11 x 14 + ....... + 3 / 95 x 98 + 3 / 98 x 101
Bai 2 :So sanh phan so voi 1:
2009 x 2011 + 2010 / 2008 x 2012 + 2009
ko puy dong hay so sanh phan so sau 21/25 va 60/81