Question

[Nguyễn Minh Lan]

Rút gọn các phân số 291/891; 549/1281; 3672/4284; 7976/9970; 578/3757; 5083/2431

Answer 1

[Yeutoanhoc]

`291/891=(97xx3)/(297xx3)=97/297`

`549/1281=(183xx3)/(183xx7)=3/7`

`3672/4284=(6xx612)/(7xx612)=6/7`

`7696/9970=(2xx3848)/(2xx4985)=3848/4985`

`578/3757=(2xx289)/(13xx289)=2/13`

`5083/2431=(23xx221)/(11xx221)=23/11`

Answer 2

[Lưu Quang Trường]

\(\dfrac{291}{891}=\dfrac{97}{297};\dfrac{549}{1281}=\dfrac{3}{7}\\ \dfrac{3672}{4284}=\dfrac{6}{7};\dfrac{7976}{9970}=\dfrac{4}{5}\\ \dfrac{578}{3757}=\dfrac{2}{13};\dfrac{5083}{2431}=\dfrac{23}{11}\)