Question

[plus]

Tính 

Answer 1

[Ninh Thế Quang Nhật]

\(\frac{71}{69}+\frac{60}{47}+\frac{67}{69}+\frac{34}{47}=\left(\frac{71}{69}+\frac{67}{69}\right)+\left(\frac{60}{47}+\frac{34}{47}\right)=\frac{138}{69}+\frac{94}{47}=2+2=4\)