`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)

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

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

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

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

\(=\dfrac{3}{5}\\ =\dfrac{7}{9}\\ =\dfrac{4}{3}\\ =\dfrac{9}{7}\)

\(\dfrac{6}{10}=\dfrac{3}{5};\dfrac{70}{90}=\dfrac{7}{9};\dfrac{96}{72}=\dfrac{8}{9};\dfrac{45}{35}=\dfrac{9}{7}\)

\(\dfrac{6}{10}=\dfrac{3}{5}\)

\(\dfrac{70}{90}=\dfrac{7}{9}\)

\(\dfrac{96}{72}=\dfrac{4}{3}\)

\(\dfrac{45}{35}=\dfrac{9}{7}\)

\(\dfrac{6}{10}=\dfrac{3}{5};\dfrac{70}{90}=\dfrac{7}{9};\)\(\dfrac{96}{72}=\dfrac{4}{3}\)\(\dfrac{45}{35}=\dfrac{9}{7}\)

\(\dfrac{6}{10}=\dfrac{3}{5};\dfrac{70}{90}=\dfrac{7}{9};\dfrac{96}{72}=\dfrac{4}{3};\dfrac{45}{35}=\dfrac{9}{7}\)

6/10=3/5

70/90=7/9

96/72=4/3

45/35=9/7 nha

HT

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

`70/90=(70:10)/(90:10)=7/9`

`96/72=(96:24)/(72:24)=4/3`

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

\(\dfrac{6}{10}=\dfrac{6:2}{10:2}=\dfrac{3}{5}\)

\(\dfrac{70}{90}=\dfrac{70:10}{90:10}=\dfrac{7}{9}\)

\(\dfrac{96}{72}=\dfrac{96:24}{72:24}=\dfrac{4}{3}\)

\(\dfrac{45}{35}=\dfrac{45:5}{35:5}=\dfrac{9}{7}\)

6/10=3/5

70/90=7/9

96/72=4/3

45/35=9/7

giúp mình với, đi mà mọi người mình đang cần gấp mà

a) 2/3,1/4,1/2,21/44
b) 2/3,3/5,1/8,1/3

a) = 3/5 

b)2/3

c) 4/3

d) 7/5

a,3/5

b,2/3

c,4/3

d,7/5

a 3/5

b 2/3

c 4/3

d 7/5

1) $(-35)\cdot18+28\cdot35$

$=35\cdot(-18)+28\cdot35$

$=35\cdot(-18+28)$

$=35\cdot10$

$=350$

2) $53\cdot29-47\cdot(-29)$

$=53\cdot29-47\cdot(-1)\cdot29$

$=53\cdot29+47\cdot29$

$=29\cdot(53+47)$

$=29\cdot100$

$=2900$

3) $125\cdot(-24)+24\cdot225$

$=(-125)\cdot24+24\cdot225$

$=24\cdot(-125+225)$

$=24\cdot100$

$=2400$

4) $26\cdot(-121)-121\cdot(-36)$

$=-121\cdot[26+(-36)]$

$=-121\cdot(26-36)$

$=-121\cdot(-10)$

$=121\cdot10$

$=1210$

5) $65\cdot(-25)+25\cdot(-23)$

$=-65\cdot25+25\cdot(-23)$

$=25\cdot(-65-23)$

$=25\cdot(-88)$

$=-2200$

6) $237\cdot(-26)+26\cdot137$

$=-237\cdot26+26\cdot137$

$=26\cdot(-237+137)$

$=26\cdot(-100)$

$=-2600$

7) $30\cdot(-125)+25\cdot30$

$=30\cdot(-125+25)$

$=30\cdot(-100)$

$=-3000$

8) $(-37)\cdot69+(-31)\cdot37$

$=37\cdot(-69)+37\cdot(-31)$

$=37\cdot(-69-31)$

$=37\cdot(-100)$

$=-3700$

9) $31\cdot72-31\cdot70-31\cdot2$

$=31\cdot(72-70-2)$

$=31\cdot(2-2)$

$=31\cdot0$

$=0$

10) $(-12)\cdot47+(-12)\cdot52+(-12)$

$=-12\cdot(47+52+1)$

$=-12\cdot100$

$=-1200$

$\text{#}Toru$

\(\dfrac{15}{35}=\dfrac{15:5}{35:5}=\dfrac{3}{7}\)

\(\dfrac{24}{27}=\dfrac{24:3}{27:3}=\dfrac{8}{9}\)

\(\dfrac{17}{50}\) ( phân số dã tối giản )

\(\dfrac{15}{45}=\dfrac{15:3}{45:3}=\dfrac{5}{15}=\dfrac{5:5}{15:5}=\dfrac{1}{3}\)

\(\dfrac{99}{121}=\dfrac{99:11}{121:11}=\dfrac{9}{11}\)

`15/35 = (15 \div 5)/(35 \div 5)=3/7`

`24/27 = (24 \div 3)/(27 \div 3)=8/9`

`17/50` đã rút gọn

`15/45=(15 \div 15)/(45 \div 15)=1/3`

`99/121=(99 \div 11)/(121 \div 11)=9/11`

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 :

 \(\text{34/51; 20/30; 84/126}\)