Question

Viết mỗi phân số sau đây thành phân số bằng nó và có mẫu dương:

-11/-55

3/-11

-7/-33

41/-47

Answer 1

\(\dfrac{-11}{-55}=\dfrac{-11:\left(-11\right)}{\left(-55\right):\left(-11\right)}=\dfrac{1}{5}\\ \dfrac{3}{-11}=\dfrac{3:\left(-1\right)}{-11:\left(-1\right)}=\dfrac{-3}{11}\\ \dfrac{-7}{-33}=\dfrac{-7:\left(-1\right)}{-33:\left(-1\right)}=\dfrac{7}{33}\\ \dfrac{41}{-47}=\dfrac{41:\left(-1\right)}{-47:\left(-1\right)}=\dfrac{-41}{47}\)

Answer 2

\(\dfrac{-11}{-55}=\dfrac{1}{5}\)

\(\dfrac{3}{-11}=\dfrac{-3}{11}\)

\(\dfrac{-7}{-33}=\dfrac{7}{33}\)

\(\dfrac{41}{-47}=\dfrac{-41}{47}\)

Answer 3

Answer 4

\(\dfrac{-11}{-55}=\dfrac{1}{5}\)

\(\dfrac{3}{-11}=\dfrac{-3}{11}\)

\(\dfrac{-7}{-33}=\dfrac{7}{33}\)

\(\dfrac{41}{-47}=\dfrac{-41}{47}\)