Còn nữa:0,1; 0,02; 82 45/100;810 225/1000

+ 104/19   

+ 1/50

+ 1/250

+ 19/200

k đi lm tiếp cho

a) \(\frac{15}{10}=1,5\)        \(\frac{675}{10}=6,75\)          \(\frac{7}{10}=0,7\)      

\(\frac{79}{100}=0,79\)       \(\frac{5}{100}=0,05\)           \(\frac{67}{100}=0,67\)

b) \(\frac{1}{2}=1\div2=0,5\)                   \(\frac{3}{4}=3\div4=0,75\)

\(\frac{15}{8}=15\div8=1,875\)              \(\frac{7}{25}=7\div25=0,28\)

\(\frac{19}{30}=19\div30=0,63\)              \(\frac{21}{125}=21\div125=0,168\)

4\(\dfrac{1}{2}\)=4,5      3\(\dfrac{4}{5}\)=3,8         2\(\dfrac{3}{4}\)=2,75      1\(\dfrac{12}{25}\)=1,48.

4 1/2=4,5

3 4/5=3,8

2 3/4=2,75

1 12/25=1,48

đúng 100% nha

\(4\dfrac{1}{2}\)=4\(\dfrac{5}{10}\)=4,5

\(3\dfrac{4}{5}\)=3\(\dfrac{8}{10}\)=3,8

\(2\dfrac{3}{4}\)=2\(\dfrac{75}{100}\)=2,75

1\(\dfrac{12}{25}\)=1\(\dfrac{48}{100}\)=1,48

\(a,\dfrac{65}{100}=0,65\\ b,\dfrac{32}{1000}=0,032\\ c,\dfrac{4}{25}=0,16\\ d,\dfrac{9}{4}=2,25\)

19/4

123/8

189/25

1127/125

k nha

0,7=7/10

0,05=1/20

0,079=79/1000

0,654=327/500

0,47=47/100

b)45/10=4,5

437/10=43,7

58246/100=58,246

94/100=0,94

53/1000=0,053

a) 3 và 3/4=3,75
b) 19 và 3/8=19,375
c) 27 và 2/5=27,4
 

5/2=250/100

6/25=24/100

9/5=180/100

90/1000=9/100

50/10=500/100

55=55/1=5500/100

2=2/1=200/100

200/100 nha 

4\(\dfrac{1}{2}\) = 4+0,5 = 4,5

4\(\dfrac{1}{2}\) = \(\dfrac{9}{2}\) = 4,5

3\(\dfrac{4}{5}\) = 3+0,8 = 3,8

3\(\dfrac{4}{5}\) = \(\dfrac{19}{5}\) = 3,8

2\(\dfrac{3}{4}\) = 2 + 0,75 = 2,75

2\(\dfrac{3}{4}\) = \(\dfrac{11}{4}\) = 2,75

1\(\dfrac{12}{25}\) = 1 + \(0,48\) = 1,48

1\(\dfrac{12}{25}\) = \(\dfrac{37}{25}\) = 1,48

41221​ = 4+0,5 = 4,5

41221​ = 9229​ = 4,5

34554​ = 3+0,8 = 3,8

34554​ = 195519​ = 3,8

23443​ = 2 + 0,75 = 2,75

23443​ = 114411​ = 2,75

112252512​ = 1 + $0,48$ = 1,48

112252512​ = 37252537​