\(\frac{6}{9}=\frac{6:3}{9:3}=\frac{2}{3}\)

\(\frac{18}{48}=\frac{18:2}{48:2}=\frac{9}{24}\)

\(\frac{72}{84}=\frac{72:12}{84:12}=\frac{6}{7}\)

\(\frac{1212}{3939}=\frac{1212:101}{3939:101}=\frac{12}{39}\)

TL

\(\frac{6}{9}=\frac{2}{3}\)

\(\frac{18}{48}=\frac{3}{8}\)

\(\frac{72}{84}=\frac{6}{7}\)

\(\frac{1212}{3939}=\frac{4}{13}\)

nha bn\

HT

6/9=2/3

18/48=6/16

72/84=6/7

1212/3939=404/1313

a) \(\frac{6}{9}=\frac{6:3}{9:3}=\frac{2}{3}\)

b)\(\frac{10}{48}=\frac{10:2}{48:2}=\frac{5}{24}\)

c)\(\frac{72}{84}=\frac{72:12}{84:12}=\frac{6}{7}\)

d)\(\frac{1212}{3939}=\frac{1212:303}{3939:303}=\frac{4}{13}\)

#H

Rút gọn phân số:

\(\frac{6}{9}=\frac{6\div3}{9\div3}=\frac{2}{3}\)

\(\frac{10}{48}=\frac{10\div2}{48\div2}=\frac{5}{24}\)

\(\frac{72}{84}=\frac{72\div12}{84\div12}=\frac{6}{7}\)

\(\frac{1212}{3939}=\frac{1212\div303}{3939\div303}=\frac{4}{13}\)

\(\frac{72}{84}\)=\(\frac{6}{7}\)

\(\frac{1212}{3939}\)=\(\frac{4}{13}\)

trả lời:

\(\frac{72}{84}=\frac{18}{21}=\frac{6}{7}\)

\(\frac{1212}{3939}=\frac{1212:101}{3939:101}=\frac{12}{39}=\frac{4}{13}\)

học tốt

72\84=6\7                          1212\3939=4\13

1212/3939=4/13

3131/3535=31/35 

tk mình nhé bạn

Thank you vẻy much

1212/3939 = 4/13

3131/3535 = 31/35

tk mình nha

1212/3939=4/13

3131/3535=31/35

k mk nha

1/8;24/1313;404/1313

\(\dfrac{18}{48}=\dfrac{3}{8}\)

\(\dfrac{72}{3939}=\dfrac{24}{1313}\)

\(\dfrac{1212}{3939}=\dfrac{4}{13}\)

5/7>6/21

18/24>15/25

12/13=1212/1313

\(\dfrac{5}{7}\)>\(\dfrac{6}{21}\)

\(\dfrac{18}{24}\)>\(\dfrac{15}{25}\)

\(\dfrac{12}{13}\)=\(\dfrac{1212}{1313}\)

\(\frac{6}{9}=\frac{6:3}{9:3}=\frac{2}{3}\)

\(\frac{18}{48}=\frac{18:6}{48:6}=\frac{3}{8}\)

\(\frac{72}{84}=\frac{72:12}{84:12}=\frac{6}{7}\)

\(\frac{60}{120}=\frac{60:60}{120:60}=\frac{1}{2}\)

\(\frac{6}{9}=\frac{6\div3}{9\div3}=\frac{2}{3}\)

\(\frac{18}{48}=\frac{18\div6}{48\div6}=\frac{3}{8}\)

\(\frac{72}{84}=\frac{72\div12}{84\div12}=\frac{6}{7}\)

\(\frac{60}{120}=\frac{60\div60}{120\div60}=\frac{1}{2}\)

26/39=2/3

1212/3939=4/13

164/369=4/9

506/418=23/19

12*3*15/36*5*3=1

4*9*12*15/6*9*8*5=3

1.
A= \(2\sqrt{6}\) + \(6\sqrt{6}\) - \(8\sqrt{6}\)
A= 0
2.
A= \(12\sqrt{3}\) + \(5\sqrt{3}\) - \(12\sqrt{3}\)
A= 0
3.
A= \(3\sqrt{2}\) - \(10\sqrt{2}\) + \(6\sqrt{2}\)
A= -\(\sqrt{2}\)
4.
A= \(3\sqrt{2}\) + \(4\sqrt{2}\) - \(\sqrt{2}\)
A= \(6\sqrt{2}\)
5.
M= \(2\sqrt{5}\) - \(3\sqrt{5}\) + \(\sqrt{5}\)
M= 0
6.
A= 5 - \(3\sqrt{5}\) + \(3\sqrt{5}\)
A= 5

This literally took me a while, pls sub :D
https://www.youtube.com/channel/UC4U1nfBvbS9y_Uu0UjsAyqA/featured