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Theo thứ tự : 5/6 ; 2/3 ; 2/3 ; 3/2 ; 2/3 ; 3/8 ; 3/1(hay là 3)
\(\dfrac{10}{12}=\dfrac{5}{6}\) \(\dfrac{8}{12}=\dfrac{2}{3}\) \(\dfrac{10}{15}=\dfrac{2}{3}\) \(\dfrac{27}{18}=\dfrac{3}{2}\) \(\dfrac{24}{36}=\dfrac{4}{6}=\dfrac{2}{3}\)
\(\dfrac{18}{48}=\dfrac{3}{8}\) \(\dfrac{42}{14}=\dfrac{6}{2}=\dfrac{3}{1}\)
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\(\dfrac{50}{60}=\dfrac{5}{6}\)
\(\dfrac{33}{11}=3\)
\(\dfrac{16}{60}=\dfrac{4}{15}\)
\(\dfrac{42}{22}=\dfrac{21}{11}\)
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`a)` Phân số tối giản là: \(\dfrac{2}{3};\dfrac{5}{4};\dfrac{11}{12}\)
`b)` Phân số rút gọn được là: \(\dfrac{28}{14};\dfrac{69}{54}\)
\(\dfrac{28}{14}=\dfrac{28:14}{14:14}=2\)
\(\dfrac{69}{54}=\dfrac{69:3}{54:3}=\dfrac{23}{18}\)
a, phân số tối giản là 2/3; 11/12; 5/4
b, phân số rút gọn được là 28/14=2; 69/54=16/9
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\(\dfrac{9}{36}=\dfrac{9:9}{36:9}=\dfrac{1}{4}\)
\(\dfrac{30}{48}=\dfrac{30:6}{48:6}=\dfrac{5}{8}\)
\(\dfrac{72}{42}=\dfrac{72:6}{42:6}=\dfrac{12}{7}\)
\(\dfrac{9}{36}\) = \(\dfrac{1}{4}\)
\(\dfrac{30}{48}\) = \(\dfrac{5}{8}\)
\(\dfrac{72}{42}\) = \(\dfrac{12}{7}\)
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42/182=3/13
khi do a+b=3+13=16
tk minh nha
minh nhanh nhat do
chuc mung nam moi
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\(\dfrac{21}{28}=\dfrac{21:7}{28:7}=\dfrac{3}{4}\)
\(\dfrac{18}{54}=\dfrac{18:9}{54:9}=\dfrac{2}{6}=\dfrac{1}{3}\)
\(\dfrac{90}{72}=\dfrac{90:9}{72:9}=\dfrac{10}{8}=\dfrac{5}{4}\)
\(\dfrac{9}{36}=\dfrac{9:9}{36:9}=\dfrac{1}{4}\)
\(\dfrac{30}{48}=\dfrac{30:6}{48:6}=\dfrac{5}{8}\)
\(\dfrac{72}{42}=\dfrac{72:6}{42:6}=\dfrac{12}{7}\)
bằng 1/3 nha bn
14/42 : 14 = 1/3 nhé
mình giải rồi