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2012 + 2013 x 2014 / 2014 x 2015 -2016 = 1
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=(2014*2013 +2014+2014-2016) : (2012 +2013*2014)
=(2014*2013 +2012):(2012+2013*2014)
\(\frac{2012+2013.2014}{2014.2015-2016}\)= \(\frac{2012+2013.2014}{2014.\left(2013+2\right)-2016}\) = \(\frac{2012+2013.2014}{2014.2013+2.2014-2016}\)= \(\frac{2012+2013.2014}{2014.2013+4028-2016}\)= \(\frac{2012+2013.2014}{2014.2013+2012}\)= \(1\)
\(2012+2013\times\frac{2014}{2014}\times2015-2016\)
\(=2012+2013\times2015-2016\)
\(=2012+4056195-2016\)
\(=4058207-2016\)
\(=4056191\)
\(\frac{2012+2013.2014}{2014.2015-2016}\)
\(\frac{2012+2013.2014}{2014.\left(2013+2\right)-2016}\)
\(\frac{2012+2013.2014}{2014.2013+2014.2-2016}\)
\(\frac{2012}{2012}\)
\(1\)
2012+2013x2014/2014x2015-2016
=2012+4054182/4058210-2016
=4056194:4056194
=1
$\frac{\frac{2010}{2011}}{\frac{2012}{2013}}+\frac{\frac{2011}{2012}}{\frac{2013}{2014}}+\frac{\frac{2012}{2013}}{\frac{2014}{2015}}$
$\frac{\frac{2010}{2011}}{\frac{2012}{2013}}+\frac{\frac{2011}{2012}}{\frac{2013}{2014}}+\frac{\frac{2012}{2013}}{\frac{2014}{2015}}$
$\frac{\frac{2010+2011+2012}{2011+2012+2013}}{\frac{2012+2013+2014}{2013+2014+2015}}$
$\frac{\frac{2010}{2011}+\frac{2011}{2012}+\frac{2012}{2013}}{\frac{2012+2013+2014}{2013+2014+2015}}$
$\frac{\frac{2010+2011+2012}{2011+2012+2013}}{\frac{2012}{2013}+\frac{2013}{2014}+\frac{2014}{2015}}$
