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1313/1717 = ( 1313 :101)/(1717:101)=13/17
171717/191919=(171717:10101)/(191919:10101)=17/19
231231/343343=(231231:7007)/(343343:7007)=33/49
373737/494949=(373737:10101)/(494949:10101)=37/49
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Rút gọn: 373737/414141=373737:10101/414141:10101=37/47
nhớ **** nha........
Bai lam:
(373737 : 10101) / (414141:10101) = 37/41
đúng mik nha!
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Ta có :
\(\frac{1960}{1008}=\frac{1960:56}{1008:56}=\frac{35}{18}\)
\(\frac{1200}{1728}=\frac{1200:48}{1728:48}=\frac{25}{36}\)
\(\frac{131313}{919191}=\frac{131313:131313}{919191:131313}=\frac{1}{7}\)
\(\frac{575757}{191919}=575757:191919=3\)
1960/1008 = 35/18
1200/1728 = 25/36
131313/919191 = 1/7
575757/191919 = 3
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em muốn nhanh thì lần sau em tách câu hỏi ra chứ đừng hỏi nhiều trong một câu em nhé
\(\dfrac{12}{48}\) = \(\dfrac{12:12}{48:12}=\) \(\dfrac{1}{2}\) \(\dfrac{49}{140}\) = \(\dfrac{49:7}{140:7}\) = \(\dfrac{7}{20}\)
\(\dfrac{125}{1000}\) = \(\dfrac{125:125}{1000:125}\) = \(\dfrac{1}{8}\) \(\dfrac{352}{253}\) = \(\dfrac{352:11}{253:11}\)= \(\dfrac{32}{23}\)
\(\dfrac{75}{300}=\) \(\dfrac{75:75}{300:75}\) = \(\dfrac{1}{4}\) \(\dfrac{561}{132}\) = \(\dfrac{561:33}{132:33}\) = \(\dfrac{17}{4}\)
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816/1000 = 102/125
373737/191919 = 37/19