Question

[Phan Nguyễn Phương Anh]

ính bằng cách thuận tiện nhất:

$=$  \dfrac{11}{5}+\dfrac{2}{19}+\dfrac{55}{19}

$=$    

$=$    

$=$    

$=$    .

 \dfrac{14}{5}  \dfrac{11}{5}+3  \dfrac{16}{5}  \dfrac{26}{5}  \dfrac{11}{5}+\dfrac{57}{19}  \dfrac{11}{5}+\left(\dfrac{2}{19}+\dfrac{55}{19}\right) 

 

Answer 1

[Tung Duong]

\(\frac{11}{5}+\frac{2}{19}+\frac{55}{19}\)

\(=\frac{11}{5}+\left(\frac{2}{19}+\frac{55}{19}\right)\)

\(=\frac{11}{5}+3\)

\(=\frac{26}{5}\)