\(\dfrac{11}{31}\) > \(\dfrac{111}{311}\)
b) 11/31 và 111 / 311
Ta có:
\(\dfrac{11}{31}:\dfrac{111}{311}=\dfrac{3421}{3441}\)
Vì \(\dfrac{3421}{3441}< 1\)
⇒\(\dfrac{11}{31}< \dfrac{111}{311}\)
\(\dfrac{11}{31}=\dfrac{3421}{9641},\dfrac{111}{311}=\dfrac{3441}{9641}\)
Ta so sánh:
\(\dfrac{3421}{9641}< \dfrac{3441}{9641}\)
Vậy:
\(\dfrac{11}{31}< \dfrac{111}{311}\)