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\(\frac{199519951995}{199619961996}=\frac{1995.100010001}{1996.100010001}=\frac{1995}{1996}\)
\(\frac{130130}{180180}=\frac{130.1001}{180.1001}=\frac{130}{180}=\frac{13}{18}\)
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\(\frac{3131}{3535}=\frac{3131:101}{3535:101}=\frac{31}{35}\)
\(\frac{204204}{217217}=\frac{204204:1001}{217217:1001}=\frac{204}{217}\)
\(\frac{414141}{180180}=\frac{414141:273}{180180:273}=\frac{1517}{660}\)
\(\frac{171171171}{180180180}=\frac{171171171:9009009}{180180180:9009009}=\frac{19}{20}\)
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\(\dfrac{2}{9}\),\(\dfrac{7}{12}\),\(\dfrac{18}{41}\),\(\dfrac{2}{5}\),\(\dfrac{19}{20}\),\(\dfrac{41}{49}\)
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\(\dfrac{90}{120}=\dfrac{30.3}{30.4}=\dfrac{3}{4}\)
\(\dfrac{15}{25}=\dfrac{5.3}{5.5}=\dfrac{3}{5}\)
\(\dfrac{18}{45}=\dfrac{9.2}{9.5}=\dfrac{2}{5}\)
\(\dfrac{36}{64}=\dfrac{4.9}{4.16}=\dfrac{9}{16}\)
\(\dfrac{32}{72}=\dfrac{8.4}{8.9}=\dfrac{4}{9}\)
\(\dfrac{84}{49}=\dfrac{7.12}{7.7}=\dfrac{12}{7}\)
\(\dfrac{90}{120}=\dfrac{3}{4};\dfrac{15}{25}=\dfrac{3}{5};\dfrac{18}{45}=\dfrac{2}{5};\dfrac{36}{64}=\dfrac{9}{16};\dfrac{32}{72}=\dfrac{4}{9};\dfrac{84}{49}=\dfrac{12}{7}\)
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\(\left(1+\dfrac{100}{20}\right)\) x \(\dfrac{125}{60}\)
\(=6\) x \(\dfrac{125}{60}\)
\(=\dfrac{750}{60}=\dfrac{25}{2}\)
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\(\frac{3}{5}\)
=\(\frac{3}{5}\)nhé