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121/143=11/13
1212/1414=6/7
123123/456456=123/456=41/152
\(\dfrac{132}{143}=\dfrac{132:11}{143:11}=\dfrac{12}{13}\)
`143/132=(143:11)/(132:11)=13/12`
`3535/3737=(3535:101)/(3737:101)=35/37`
\(\dfrac{12}{18}=\dfrac{12:6}{18:6}=\dfrac{2}{3}\)
\(\dfrac{49}{21}=\dfrac{49:7}{21:7}=\dfrac{7}{3}\)
\(\dfrac{15}{35}=\dfrac{15:5}{35:5}=\dfrac{3}{7}\)
\(\dfrac{26}{34}=\dfrac{26:2}{34:2}=\dfrac{13}{17}\)
\(\dfrac{11}{121}=\dfrac{11:11}{121:11}=\dfrac{1}{11}\)
\(\dfrac{12}{18}=\dfrac{12:6}{18:6}=\dfrac{2}{3};\dfrac{49}{21}=\dfrac{49:7}{21:7}=\dfrac{7}{3};\dfrac{15}{35}=\dfrac{15:5}{35:5}=\dfrac{3}{7};\dfrac{26}{34}=\dfrac{26:2}{34:2}=\dfrac{13}{17};\dfrac{11}{121}=\dfrac{11:11}{121:11}=\dfrac{1}{11}\)
\(\frac{121}{143}=\frac{121\div11}{143\div11}=\frac{11}{13}\)
\(HT\)
TL
\(\frac{121}{143}=\frac{121:11}{143:11}=\frac{11}{13}\)
nhé
_HT_