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\(\dfrac{50}{60}=\dfrac{5}{6}\)
\(\dfrac{33}{11}=3\)
\(\dfrac{16}{60}=\dfrac{4}{15}\)
\(\dfrac{42}{22}=\dfrac{21}{11}\)
\(\dfrac{21}{28}=\dfrac{21:7}{28:7}=\dfrac{3}{4}\)
\(\dfrac{18}{54}=\dfrac{18:9}{54:9}=\dfrac{2}{6}=\dfrac{1}{3}\)
\(\dfrac{90}{72}=\dfrac{90:9}{72:9}=\dfrac{10}{8}=\dfrac{5}{4}\)
\(\dfrac{9}{36}=\dfrac{9:9}{36:9}=\dfrac{1}{4}\)
\(\dfrac{30}{48}=\dfrac{30:6}{48:6}=\dfrac{5}{8}\)
\(\dfrac{72}{42}=\dfrac{72:6}{42:6}=\dfrac{12}{7}\)
Theo thứ tự : 5/6 ; 2/3 ; 2/3 ; 3/2 ; 2/3 ; 3/8 ; 3/1(hay là 3)
\(\dfrac{10}{12}=\dfrac{5}{6}\) \(\dfrac{8}{12}=\dfrac{2}{3}\) \(\dfrac{10}{15}=\dfrac{2}{3}\) \(\dfrac{27}{18}=\dfrac{3}{2}\) \(\dfrac{24}{36}=\dfrac{4}{6}=\dfrac{2}{3}\)
\(\dfrac{18}{48}=\dfrac{3}{8}\) \(\dfrac{42}{14}=\dfrac{6}{2}=\dfrac{3}{1}\)
\(a.\dfrac{5}{10}=\dfrac{1}{2}=\dfrac{1\times3}{2\times3}=\dfrac{3}{6}\)
\(\dfrac{25}{75}=\dfrac{1}{3}=\dfrac{1\times2}{3\times2}=\dfrac{2}{6}\)
\(b.\dfrac{42}{56}=\dfrac{3}{4}=\dfrac{3\times2}{4\times2}=\dfrac{6}{8}\)
\(\dfrac{18}{48}=\dfrac{3}{8}\)
\(c.\dfrac{27}{81}=\dfrac{1}{3}=\dfrac{1\times4}{3\times4}=\dfrac{4}{12}\)
\(\dfrac{57}{76}=\dfrac{3}{4}=\dfrac{3\times3}{4\times3}=\dfrac{9}{12}\)
\(\dfrac{35}{84}=\dfrac{5}{12}\)
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\(\frac{72}{54}=\frac{72:18}{54:18}=\frac{4}{3}\) \(\frac{18}{54}=\frac{18:18}{54:18}=\frac{1}{3}\)
\(\frac{35}{210}=\frac{35:35}{210:35}=\frac{1}{6}\) \(\frac{90}{72}=\frac{90:18}{72:18}=\frac{5}{4}\)
\(\frac{9}{36}=\frac{9:9}{36:9}=\frac{1}{4}\) \(\frac{30}{48}=\frac{30:6}{48:6}=\frac{5}{8}\)
\(\frac{72}{42}=\frac{72:6}{42:6}=\frac{12}{7}\)
4/3,1/6,1/3,5/4,1/4,5/8,12/7
nhớ k cho mình nha