Question

Rút gọn phân số

117/143

52/117

102/187

133/247

5353/3535

 SOS

Answer 1

\(\dfrac{117}{143}=\dfrac{117:13}{143:13}=\dfrac{9}{11}\)

\(\dfrac{52}{117}=\dfrac{52:13}{117:13}=\dfrac{4}{9}\)

\(\dfrac{102}{187}=\dfrac{102:17}{187:17}=\dfrac{6}{11}\)

\(\dfrac{133}{247}=\dfrac{133:19}{247:19}=\dfrac{7}{13}\)

\(\dfrac{5353}{3535}=\dfrac{5353:101}{3535:101}=\dfrac{53}{35}\)

Answer 2

`117/143=(117:13)/(143:13)=9/11`

`52/117=(52:13)/(117:13)=4/9`

`102/187=(102:17)/(187:17)=6/11`

`5353/3535=(5353:101)/(3535:101)=53/35`