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500x6+500x4-108:12:9
=500x(6+4)-9:9
=500x10-1
=5000-1
=4999
9782x35-9782x25+1000:5:2
=9782x(35-25)+200:2
=9782x10+100
=97820+100
=97920
37800:25:4+57+467x43
=1512:4+57+20081
=378+57+20081
=435+20081
=20516
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a) \(\frac{25}{5}\); \(\frac{7}{3}\) ; \(\frac{25}{35}\); \(\frac{5}{8}\); \(\frac{21}{56}\)
b) \(\frac{9}{2}\) ; \(\frac{9}{7}\); \(\frac{25}{50}\); \(\frac{2}{9}\); \(\frac{1}{5}\)
k cho mk nha
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15x3/5=9
4/2x1/2=1
6/25x5/8=3/20
15:1/3=45
35:1/5=175
4/5:1/2=8/5
k mk nha.
\(15\times\frac{3}{5}=\frac{45}{5}=9\)
\(\frac{4}{2}\times\frac{1}{2}=\frac{4}{4}=1\)
\(\frac{6}{25}\times\frac{5}{8}=\frac{30}{200}=\frac{3}{20}\)
\(15:\frac{1}{3}=\frac{45}{1}=45\)
\(35:\frac{1}{5}=\frac{175}{1}\)
\(\frac{4}{5}:\frac{1}{2}=\frac{8}{5}\)
\(\frac{6}{25}:\frac{5}{8}=\frac{48}{125}\)
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![](https://rs.olm.vn/images/avt/0.png?1311)
97920 nhé bạn động não tí đi
= 9782 x (35 - 25) + 100
= 9782 x 10 + 100
= 97820 + 100
= 97920
@minhnguvn