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a ) 3 10 ; 11 100 ; 213 1000 . b ) 7 100 ; 129 10000 c ) 521 1000 .
![](https://rs.olm.vn/images/avt/0.png?1311)
a ) 9 10 ; 27 100 ; 109 1000 . b ) 3 100 ; 421 10000 c ) 417 1000
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(\frac{{125}}{{100}}\,{m^2}=\frac{{5}}{{4}}\,{m^2}=1\frac{{1}}{{4}}\,{m^2}\)
b) \(\frac{{218}}{{10000}}\,{m^2}=\frac{{109}}{{5000}}\,{m^2}\)
c) \(\frac{{240}}{{100}}\,{m^2}=\frac{{12}}{{5}}\,{m^2}=2\frac{{40}}{{100}}\,{m^2}\)
d) \(\frac{{34}}{{10000}}\,{m^2}=\frac{{17}}{{5000}}\,{m^2}\)
Nếu viết chúng theo đề-xi-mét vuông:
a) \(\frac{{125}}{1}\,d{m^2}\)
b) \(\frac{{218}}{{100}}\,{dm^2}=\frac{{109}}{{50}}\,{dm^2}=2\frac{{9}}{{50}}\,d{m^2}\)
c) \(\frac{{240}}{1}\,d{m^2}\)
d) \(\frac{{34}}{{100}}\,\,d{m^2}=\frac{{17}}{{50}}\,{dm^2}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a ) 5 d m = 5 10 m = 1 2 m ;
14 c m = 14 100 m = 7 50 m ;
250 m m = 250 1000 m = 1 4 m
b ) 8 d m 2 = 8 100 m 2 = 2 25 m 2 ;
1251 m 2 = 125 10000 m 2 = 1 80 m 2
c ) 444 d m 3 = 444 1000 m 3 = 111 250 m 3
![](https://rs.olm.vn/images/avt/0.png?1311)
a)9dm=9/10m; 27cm=27/100m; 109mm=109/1000m.
b)3dm2=3/100m2; 421cm2=421/10000m2.
c)417dm3=417/1000m3.
Sorry nha, mình ko viết được phân số.
![](https://rs.olm.vn/images/avt/0.png?1311)
1m3 = 1000dm3 = 1000000cm3
1dm3 = 1000cm3; 1dm3 = 0,001m3
1cm3 = 0,001dm3
a ) 3 10 ; 11 100 ; 213 1000 . b ) 7 100 ; 129 10000 c ) 521 1000 .