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\(\frac{37}{10}+\frac{21}{100}+\frac{249}{10}+\frac{5684}{1000}+\frac{317}{1000}=3,7+0,21+24,9+5,684+0,317=34,811\)
\(\frac{93}{100}=93\%\); \(\frac{72}{10}=\frac{720}{100}=720\%\); \(\frac{853}{1000}=\frac{85,3}{100}=85,3\%\); \(\frac{7}{8}=\frac{56}{1000}=\frac{5,6}{100}=5,6\%\)
10 + 100 + 1000 + 10000 + 52
= 10 + 100 + 1000 + 10000 + 25
= 11135
k mik
Bài 1 :a,
\(17\frac{61}{100}=17+\frac{61}{100}=17+0,61=17,61\)
\(31\frac{501}{1000}=31+\frac{501}{1000}=31+0,501=31,501\)
\(30\frac{32}{100}=30+\frac{32}{100}=30+0,32=30,32\)
\(24\frac{7}{10}=24+\frac{7}{10}=24+0,7=24,7\)
\(18\frac{27}{10000}=18+0,0027=18,0027\)
b, \(5\frac{3}{10}=5+\frac{3}{10}=5+0,3=5,3\)
\(51\frac{62}{100}=51+\frac{62}{100}=51+0,62=51,62\)
\(90\frac{8}{100}=90+\frac{8}{100}=90+0,08=90,08\)
\(35\frac{3}{1000}=35+\frac{3}{1000}=35+0,003=35,003\)
Bài làm
\(\frac{1}{10}+\frac{20}{100}+\frac{300}{1000}+\frac{4000}{10000}\)
\(=\frac{1}{10}+\frac{2}{10}+\frac{3}{10}+\frac{4}{10}\)
\(=\frac{1+2+3+4}{10}\)
\(=\frac{10}{10}\)
\(=1\)
# Học tốt #
\(\frac{1}{10}+\frac{20}{100}+\frac{300}{1000}+\frac{4000}{10000}\)
=\(\frac{1}{10}+\frac{2}{10}+\frac{3}{10}+\frac{4}{10}\)
= \(\frac{1+2+3+4}{10}\)
=\(\frac{10}{10}\)
= 1
12+8/10=12,8
128/10000=0,0128
1+28/100=1,28
128/1000=0,128
12 8/10 - 12,8
128/10000 - 0,0128
1 28/100 - 1,28
128/1000 - 0,128
`48/10 = 24/5=4,8`
`213/10=213:10=21,3`
`3/1000=3:1000=0,003`
`25/1000 = 25:1000=0,025`
`647/100=647:100=6,47`
`982/100=982:100=9,82`
`385/10000=385:10000=0,0385`
`982/1000=0,982`
a, \(\dfrac{48}{10}\)=4,8 ; b, \(\dfrac{213}{10}\)=2,13 ; c, \(\dfrac{3}{1000}\)=0,003 ; d,\(\dfrac{25}{1000}\)=0,025 ; e,\(\dfrac{647}{100}\)=6,47; f,\(\dfrac{982}{100}\)=9,82 ; g,\(\dfrac{385}{10000}\)=0,0385 ;h,\(\dfrac{982}{1000}\)=0,0982
12 nhân 43= 516