Question

\(\frac{2009\times2010-1}{2008\times2010+2009}\)

Answer 1

\(\frac{2009\cdot2010-1}{2008\cdot2010+2009}=\frac{2008\cdot2010+2010-1}{2008\cdot2010+2009}=\frac{2008\cdot2010+2009}{2008\cdot2010+2009}=1\)

Answer 2

\(\frac{\left(2008+1\right).2010-1}{2008.2010+2009}=\frac{2008.2010+2010-1}{2008.2010+2009}\)\(=\frac{2008.2010+2009}{2008.2010+2009}=1\)