Rút gọn các phân số sau 12/27, 48/78, 24/36 , 143/132 , 39/75, 120/90, 25/100
2 câu trả lời
`**\frac{12}{27}=\frac{12:3}{27:3}=\frac{4}{9}`
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`**\frac{48}{78}=\frac{48:6}{78:6}=\frac{8}{13}`
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`**\frac{24}{36}=\frac{24:12}{36:12}=\frac{2}{3}`
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`**\frac{143}{132}=\frac{143:11}{12:11}=\frac{13}{12}`
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`**\frac{39}{75}=\frac{39:3}{75:3}=\frac{13}{25}`
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`**\frac{120}{90}=\frac{120:30}{90:30}=\frac{4}{3}`
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`**\frac{25}{100}=\frac{25:25}{100:25}=\frac{1}{4}`
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`@hightkar8`
$\frac{12}{27}$ = $\frac{12:3}{27:3}$ = $\frac{4}{9}$
$\frac{48}{78}$ = $\frac{48:16}{78:16}$ = $\frac{3}{13}$
$\frac{24}{36}$ = $\frac{24:12}{36:12}$ = $\frac{2}{3}$
$\frac{143}{132}$ =$\frac{143:11}{132:11}$ =$\frac{13}{12}$
$\frac{39}{75}$ = $\frac{13}{25}$ = $\frac{39:3}{75:3}$
$\frac{120}{90}$ = $\frac{4}{3}$ = $\frac{120:30}{90:30}$
$\frac{25}{100}$ = $\frac{25:25}{100:25}$ = $\frac{1}{4}$