giúp mik với ạ!!!

a: Các phân số tối giản là \(\dfrac{7}{8};\dfrac{8}{11};\dfrac{17}{21}\)

b: Các phân số bằng 3/4 là \(\dfrac{6}{8};\dfrac{27}{36};\dfrac{45}{60}\)

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

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

6/10=3/5

70/90=7/9

96/72=4/3

45/35=9/7 nha

HT

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

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

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

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

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

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

`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)

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

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

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

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

`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

\(a) \frac{1}{4};\frac{3}{7};\frac{101}{131}\)

\(15\div\frac{15}{45}\div15=\frac{1}{3}\)
 

\(\frac{72}{90}=72\div\frac{18}{90}\div18=\frac{4}{5}\)
 

\(50\div\frac{10}{120}\div10=\frac{5}{12}\)

1000000000000% đúng nha

Tham khảo :

^{(Tại mik lười ko mún ghi nên bạn tham khảo cái ảnh này nhá)}

Tham khảo :

Mình vừa học xong 

\(\frac{2}{6}=\frac{1}{3}\)

\(\frac{12}{36}=\frac{1}{3}\)

2/6=1/3

12/36=1/3

2/6 = 1/3

12/36 = 1/3