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`117/234=(117:117)/(234:117)=1/2`
`90/126=(90:18)/(126:18)=5/7`
`162162/345345=(162162:3003)/(345345:3003)=54/115`
\(\dfrac{117}{234}\)= \(\xrightarrow[234:117]{117:117}\) = \(\dfrac{1}{2}\) \(\dfrac{162162}{345345}\) = \(\xrightarrow[345345:3003]{162162:3003}\) =\(\dfrac{54}{115}\)
\(\dfrac{90}{126}\)= \(\xrightarrow[126:18]{90:18}\) = \(\dfrac{5}{7}\)
\(\dfrac{16}{26}=\dfrac{8}{13};\dfrac{36}{12}=3;\dfrac{48}{86}=\dfrac{16}{13};\dfrac{80}{65}=\dfrac{16}{13}\)
82/80=82:2/80:2=41/40
36/120=36:12/120:12=3/10
49/98=49:49/98:49=1/2
105/315=105:3/315:3=35/105=35:5/105:5=7/21 hoặc 105/315=105:15/315:15=7/21
114/1152=114:2/1152:2=57/576
t mình nha
\(\dfrac{65}{117}=\dfrac{65:13}{117:13}=\dfrac{5}{9}\)
\(\dfrac{152}{114}=\dfrac{152:38}{114:38}=\dfrac{4}{3}\)