Tử số: \(T=\frac{1}{99}+\frac{2}{98}+\frac{3}{97}+...+\frac{99}{1}\)
\(T=\frac{1}{99}+1+\frac{2}{98}+1+\frac{3}{97}+1+...+\frac{98}{2}+1+\frac{99}{1}+1-99\)
\(T=\frac{100}{99}+\frac{100}{98}+\frac{100}{97}+...+\frac{100}{2}+1=100\cdot\left(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{100}\right)\)
Trong ngoặc chính là mẫu số nên
m=100.