Сравните дроби 1/7 и 4/21 б в г

Question

Сравните дроби 1/7 и 4/21 б в г

Comments

под буквами

---

а 3/5и 8/15

Answer 1

1/7 < 4/21
3/21 <4/21

Comments

3/5 и 8/15

---

ииии?

Answer 2

1/7 и 4/21 общий знамен. 21》 3/21 <4/21