rút gọn di =
Ta có : \(\frac{31}{41}\)= 0,7560...
\(\frac{313}{413}\)=0,7578..
Mà 0,7560... < 0,7578...
\(\Rightarrow\)\(\frac{31}{41}\)< \(\frac{313}{413}\)
ta có: 31/41=310/410
Phần bù
310/410=1-100/410
313/413=1-100/413
ta thấy:100/410>100/413
suy ra: 1-100/410<1-100/413
suy ra: 31/41<313/413
TL
\(\frac{31}{41}< \frac{313}{413}\)
HT
@@@@!!!!!