Toán 1/2 + 1/3 +…. +1/9 + 1/10 giúp mik với, giải chi tiết nha 12/09/2021 By Jasmine 1/2 + 1/3 +…. +1/9 + 1/10 giúp mik với, giải chi tiết nha
$\begin{array}{l}\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{1}{6}+\frac{1}{7}+\frac{1}{8}+\frac{1}{9}\\=\frac{5}{6}+\frac{9}{20}+\frac{13}{42}+\frac{17}{72}\\=\frac{77}{60}+\frac{275}{504}=\frac{55308}{30240}=1,828968254\end{array}$ Trả lời
$\begin{array}{l}\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{1}{6}+\frac{1}{7}+\frac{1}{8}+\frac{1}{9}\\=\frac{5}{6}+\frac{9}{20}+\frac{13}{42}+\frac{17}{72}\\=\frac{77}{60}+\frac{275}{504}=\frac{55308}{30240}=1,828968254\end{array}$