\(-\frac{3}{6}=-\frac{5}{10}\)

\(-\frac{2}{6}=-\frac{5}{15}\)

\(-\frac{2}{10}=-\frac{3}{15}\)

\(\frac{6}{-3}=\frac{10}{-5}\)

\(\frac{6}{-2}=\frac{15}{-5}\)

\(\frac{10}{-2}=\frac{15}{-6}\)

1.27 = 3.9 => 1/9 = 3/27; 1/3 = 9/27; 27/9 = 3/1; 27/3 = 9/1

3.81 = 9.27 => 3/9 = 27/81; 9/3 = 81/27; 3/27 = 9/81; 27/3 = 81/9

1.81 = 3.27 => 1/27 = 3/81; 1/81 = 3/27; 3/1 = 81/27; 27/1 = 81/3 

1.27 = 3.9 => 1/9 = 3/27;

1/3 = 9/27; 27/9 = 3/1; 27/3 = 9/1 3.81 = 9.27

=> 3/9 = 27/81; 9/3 = 81/27; 3/27 = 9/81; 27/3 = 81/9 1.81 = 3.27

=> 1/27 = 3/81; 1/81 = 3/27; 3/1 = 81/27; 27/1 =

giúp mik vs mik cần hai bài này mik vừa mới đăng

\(\frac{3}{4}=\frac{12}{16};\frac{3}{12}=\frac{4}{16};\frac{16}{4}=\frac{12}{3};\frac{16}{12}=\frac{4}{3}\)

\(\frac{3}{9}=\frac{4}{12};\frac{9}{3}=\frac{12}{4};\frac{12}{9}=\frac{4}{3};\frac{9}{12}=\frac{3}{4}\)

Ta chọn ra 4 số : 2 , 4 , 8 ,16

8x4 = 2x16

8/2=16/4 , 4/2 = 16/8 , 2/4= 8/16 , 4/16 = 2/8

Lời giải:

$\frac{3}{6}=\frac{2}{4}$

$\frac{6}{3}=\frac{4}{2}$

$\frac{3}{2}=\frac{6}{4}$

$\frac{2}{3}=\frac{4}{6}$

Các cặp phân số bằng nhau từ đẳng thức \(3\times4=6\times2\) là:

\(\dfrac{3}{6}=\dfrac{2}{4};\)   \(\dfrac{4}{6}=\dfrac{2}{3};\)   \(\dfrac{6}{3}=\dfrac{2}{4};\)   \(\dfrac{6}{4}=\dfrac{3}{2}\)

12 cặp nhé

tich ủng hộ nha

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