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\(\frac{2010\cdot2011+1000}{2012\cdot2010-1010}\)
= \(\frac{2010\cdot2011+1000}{\left(2011+1\right)\cdot2010-1010}\)
= \(\frac{2010\cdot2011+1000}{2011\cdot2010+2010-1010}\)
= \(\frac{2010\cdot2011+1000}{2011\cdot2010+1000}\)
= 1
\(\frac{2010.2011+1000}{2012.2010-1010}\)
\(=\frac{2010.2011+2010-1010}{2012.2010-1010}\)
\(=\frac{2010.\left(2011+1\right)-1010}{2012.2010-1010}\)
\(=\frac{2010.2012-1010}{2012.2010-1010}\)
\(=1\)
\(\frac{2010.125+1000}{126.2010-1010}=\frac{10\left(201.125+100\right)}{10\left(201.126-101\right)}=\frac{201.125-101+201}{2011.126-101}\)
\(=\frac{201.126-101}{201.126-101}=1\)
=2010 x 125 + 2010x 126 + 1000+1010
=2010 x 125 + 2010 x 126 + 2010
=2010 x ( 125 + 126 +1 )
=2010 x 252
=506520
\(a,=15\left(\dfrac{2121}{4343}+\dfrac{222222}{434343}\right)=15\left(\dfrac{21}{43}+\dfrac{22}{43}\right)=15\cdot1=15\)
\(\frac{\left(2005+1\right).125+1000}{\left(125+1\right).2005-888}\)
= \(\frac{2005.125+125+1000}{125.2005+2005-888}\)
= \(\frac{2005.125+1125}{125.2005+1117}\)
= \(\frac{250625+1125}{250625+1117}\)
= \(\frac{125875}{125871}\)
\(=\frac{2008+2009.2010}{2010.\left(2009+2\right)-2012}\)
\(=\frac{2009.2010+2008}{2010.2009+2010.2-2012}\)
\(=\frac{2008+2009.2010}{2008+2009.2010}=1\)
\(\frac{2011.2010-1}{2009.2011+2010}=\frac{2011.\left(2009+1\right)-1}{2009.2011+2010}\)
\(=\frac{2011.2009+2011-1}{2009.2011+2010}\)
\(=\frac{2011.2009+2010}{2009.2011+2010}\)
\(=1\)
Nhớ k vs kp với mik nhé,mấy man!
= 2009 * ( 2011 - 1 ) - 1000 / 2011 * 2009 - 1009
= 2009 * 2011 - 2009 -1000 / 2011 * 2009 - 1009
= 2009 * 2011 - 1009 / 2011 * 2009 - 1009
= 1
\(\frac{2011\cdot2010-1}{2009\cdot2011+2010}=\frac{2011\cdot\left(2009+1\right)-1}{2009\cdot2011+2010}=\frac{2011\cdot2009+2011\cdot1-1}{2009\cdot2011+2010}=\frac{ }{ }\)\(\frac{2011\cdot2009+2011-1}{2009\cdot2011+2010}=\frac{2011\cdot2009+2010}{2009\cdot2011+2010}=1\)
Lời giải:
$\frac{2010\times 125+1000}{126\times 2010-1010}=\frac{2010\times (126-1)+1000}{126\times 2010-1010}$
$=\frac{2010\times 126-(2010-1000)}{126\times 2010-1010}=\frac{2010\times 126-1010}{126\times 2010-1010}=1$
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