a : 2525/2727 =
b : 135135/500500 =
c : 153153153/170170170 =
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a) \(\frac{2525}{2727}=\frac{2525:101}{2727:101}=\frac{25}{27}\)
\(\frac{135135}{500500}=\frac{135135:5005}{500500:5005}=\frac{27}{100}\)
\(\frac{153153153}{170170170}=\frac{153153153:17017017}{170170170:17017017}=\frac{9}{10}\)
b) \(\frac{7}{20}=\frac{7x6}{20x6}=\frac{42}{120}\)
\(\frac{23}{30}=\frac{23x4}{30x4}=\frac{92}{120}\)
\(\frac{34}{40}=\frac{34x3}{40x3}=\frac{102}{120}\)
\(\frac{53}{60}=\frac{53x2}{60x2}=\frac{106}{120}\)
a)\(\frac{2525}{2727}\)không rút gọn được. b)\(\frac{7}{20}\) = \(\frac{42}{120}\);\(\frac{23}{30}\) = \(\frac{92}{120}\);\(\frac{34}{40}\) = \(\frac{102}{120}\);\(\frac{53}{60}\) = \(\frac{106}{120}\)
\(\frac{135135}{500500}\)= \(\frac{57027}{100100}\)
\(\frac{135153153}{170170170}\)=\(\frac{45051051}{56723390}\)
Ta có:\(\frac{2525}{2727}=\frac{2525:101}{2727:101}=\frac{25}{27}\)
\(\frac{135135}{500500}=\frac{135135:5005}{500500:5005}=\frac{27}{100}\)
\(\frac{153153153}{170170170}=\frac{153153153:17017017}{170170170:17017017}=\frac{9}{10}\)
Vậy ...........
2525/2727=25/27
135135/500500=27/100
153153153/170170170=9/10
cho mik tròn 60 nha ! mình cảm ơn rất nhiều
1212/2727 = 12/27 = 4/9 = 8/18
2525/5050 = 25/50 = 1/2 = 9/18
Vậy a bằng:
9/18 - 8/18 = 1/18
Nhớ K nha~
1212/2727 = 4/9
2525/5050 = 1/2
4/9 + a = 1/2
a = 1/2 - 4/9
a =1/18
a) \(\frac{25}{27}\)
b) \(\frac{27}{100}\)
c) \(\frac{9}{10}\)
a : 25/27
b : 27/100
c :9/10