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TL:
\(\frac{12}{100}\)= 0,12
\(\frac{5}{100}\)= 0,05
\(\frac{306}{1000}\)= 0,306
-HT-
2/5=0,4
3/25=0.12
98/125=0.784
3/4=0,75
1/2=0,5
HT~~~
TL :
a) \(\frac{2}{5}\)= 0,4
b) \(\frac{3}{25}\)= 0,75
c) \(\frac{98}{125}\)= 0,784
d) \(\frac{3}{4}\)= 0,75
e) \(\frac{1}{2}\)= 0,5
21/70=3/10
60/75=80/100
14/35=40/100
107/125=856/1000
75/300=25/100
46/500=92/1000
a)\(\frac{14}{35}=0,4\) b)\(\frac{9}{6}=1,5\) c)\(\frac{3}{4}=0,75\)
d)\(\frac{5}{8}=0,625\) e)\(\frac{18}{30}=0,6\) g)\(\frac{448}{800}=0,56\)
5\(\frac{3}{5}\)= \(\frac{28}{5}\)
4\(\frac{2}{3}\)= \(\frac{14}{3}\)
6\(\frac{6}{7}\)= \(\frac{48}{7}\)
\(5\frac{3}{5}=5.6\) \(4\frac{2}{3}=4\left(6\right)\) \(6\frac{5}{7}=6\left(714285\right)\)
4 1/2 = 4 x 2+1/2 = 9/2
3 4/5 = 3 x 5+4/5 = 19/5
2 3/4 = 2 x 4+3/4 = 11/4
1 12/25 = 1 x 25+12/25 = 37/25
Tk mk nha
mk cho bài kham khảo nha :
\(4\frac{1}{2}=\frac{9}{2}=4,5\)
\(3\frac{4}{5}=\frac{19}{5}=3,8\)
\(2\frac{3}{4}=\frac{11}{4}=2,75\)
\(1\frac{12}{25}=\frac{37}{25}=1,48\)
ok k mk nha
Ta có : \(\frac{1}{10}dm=0,1dm\)
\(\frac{2}{200}m=\frac{1}{100}m=0,01m\)
\(\frac{3}{4}cm=0,75cm\)
\(\frac{1}{100000}km=0,00001km\)
\(\frac{1}{10}\)dm = 0,1 dm
\(\frac{2}{200}\)m = \(\frac{1}{100}\)m = \(0,01\)m
\(\frac{3}{4}\)cm = \(0,75cm\)
\(\frac{1}{100000}\)km = \(0,00001km\)
\(0,5;0,75\)
5/10; 75/100