\(\frac{4}{12}=\frac{4:4}{12:4}=\frac{1}{3}\)

\(\frac{24}{30}=\frac{24:6}{30:6}=\frac{4}{5}\)

\(\frac{25}{100}=\frac{25:25}{100:25}=\frac{1}{4}\)

\(\frac{60}{80}=\frac{60:20}{80:20}=\frac{3}{4}\)

\(\frac{9}{18}=\frac{9:9}{18:9}=\frac{1}{2}\)

\(\frac{60}{36}=\frac{60:12}{36:12}=\frac{5}{3}\)

\(\frac{72}{54}=\frac{72:18}{54:18}=\frac{4}{3}\)

\(\frac{35}{210}=\frac{35:35}{210:35}=\frac{1}{6}\)

4/12=1/3

24/30=4/5

25/100=1/4

60/80=3/4

9/18=1/2

60/36=5/3

72/54=4/3

35/210=1/6

4/12 =1/3

24/30 =4/5

25/100 =1/4

18/54=1/3
25/75=1/3
48/30=8/5

1/3

1/3

8/5

\(\Leftrightarrow\dfrac{1}{2};\dfrac{1}{2};\dfrac{8}{5};\dfrac{3}{2}\)

14/28=1/2

25/50=1/2

48/30=8/5

81/54=3/2

\(\dfrac{14}{28}=\dfrac{1}{2}\)

\(\dfrac{25}{50}=\dfrac{1}{2}\)

\(\dfrac{48}{30}=\dfrac{8}{5}\)

\(\dfrac{81}{54}=\dfrac{3}{2}\)

`6/10=3/5`

`70/9=70/9`

`96/72=4/3`

`45/35=9/7`

`24/36=2/3`

`25/100=1/4`

$6/10=(6:2)/(10:2)=3/5$

$70/9$ ( tối giản)

$96/72=(96:24)/972:24)=4/3$

$45/35=(45:5)/(35:5)=9/7$

$24/36=(24:12)/(36:12)=2/3$

$25/100=(25:25)/(100:25)=1/4$

Bài 1: 

a: 6/9=2/3

6/24=1/4

48/96=1/2

42/98=3/7

b: 24/36=2/3

18/30=3/5

15/120=1/8

80/240=1/3

c: 5/25=1/5

75/100=3/4

64/720=4/45

16/1000=2/125

Bài 2: 

Các phân số bằng 2/3 là 34/51; 20/30; 84/126

Bài 1 : 

a) 6/9 = 2/3 ; 6/24 = 1/4 ; 48/96 = 1/2 ; 42/98 = 3/7

b) 24/36 = 2/3 ; 18/30 = 3/5 ; 15/120 = 1/8 ; 80 / 240 = 1/3

c) 5 / 25 = 1/5 ; 75/100=3/4 ; 64/720=4/45 ; 16/1000=2/125

Bài 2 :

Các phân số bằng 2/3 là :

 \(\text{34/51; 20/30; 84/126}\)

\(\dfrac{6}{9}\) = \(\dfrac{6:3}{9:3}\) = \(\dfrac{2}{3}\)                    \(\dfrac{24}{36}\) = \(\dfrac{24:12}{36:12}\) = \(\dfrac{2}{3}\)

\(\dfrac{80}{240}\) = \(\dfrac{80:80}{240:80}\) = \(\dfrac{1}{3}\)           \(\dfrac{75}{100}\) = \(\dfrac{75:25}{100:25}\) = \(\dfrac{3}{4}\)

\(\dfrac{123123}{103103}\) = \(\dfrac{123123:1001}{103013:1001}\) = \(\dfrac{123}{103}\)

\(\dfrac{2121}{3232}\) = \(\dfrac{2121:101}{3232:101}\) = \(\dfrac{21}{32}\)

wow đúng hết hâm mộ quá

b: \(=\dfrac{3}{7}\cdot\dfrac{5}{7}\cdot\dfrac{6}{7}=\dfrac{90}{343}\)

c: \(=\dfrac{4}{9}\cdot\dfrac{5}{9}\cdot\dfrac{3}{7}=\dfrac{20}{189}\)

d: \(=\dfrac{1}{3}\cdot\dfrac{5}{12}\cdot\dfrac{5}{12}=\dfrac{25}{432}\)

d

76/125=76/125

25/100=1/4

14/21=2/3

48/100=12/25

K mk nha

\(\frac{76}{125}=\frac{76}{125}\)

\(\frac{25}{100}=\frac{1}{4}\)

\(\frac{14}{21}=\frac{2}{3}\)

\(\frac{48}{100}=\frac{12}{25}\)

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