Question

Tính nhanh:

A=2010.2011+4022/2012.2013-4024

Answer 1

\(A=\frac{2010.2011+4022}{2012.2013-4024}\)

\(A=\frac{2010.2011+2011.2}{2012.2013-2012.2}\)

\(A=\frac{2011.\left(2010+2\right)}{2012.\left(2013-1\right)}\)

\(A=\frac{2011.2012}{2012.2013}=\frac{2011}{2012}\)

Answer 2

mk nhầm r, xl bn nha

...

\(A=\frac{2011.\left(2010-2\right)}{2012.\left(2013-2\right)}\)

\(A=\frac{2011.2012}{2012.2011}=1\)