\(\frac{99\times101-1}{98+99\times100}\)
\(=\frac{99\times\left(100+1\right)-1}{98+99\times100}\)
\(=\frac{99\times100+99-1}{98+99\times100}\)
\(=\frac{99\times100+98}{98+99\times100}\)
\(=1\)
_Chúc bạn học tốt_
\(\frac{99\times101-1}{98+99\times100}\)
\(=\frac{99\times\left(100+1\right)-1}{98+99\times100}\)
\(=\frac{99\times100+99-1}{98+99\times100}\)
\(=\frac{99\times100+98}{98+99\times100}\)
\(=1\)
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