\(\frac{51}{85}=\frac{51:17}{85:17}=\frac{3}{5}\)

\(\frac{51}{85}=\frac{51:17}{85:17}=\frac{3}{5}\)

\(\frac{51}{18}=\frac{17}{6}\)

Ta có:\(\frac{39}{65}=\frac{39:13}{65:13}=\frac{3}{5}\)

Vậy phân số \(\frac{39}{65}\) rút gọn được \(\frac{3}{5}\)

39/65=3/5

đúng rồi đó em ah

Phan so toi gian la 3/5 nha ban

\(\frac{15}{65}=\frac{3\times5}{5\times13}=\frac{3}{13}\)

\(\frac{85-17+34}{51-102}\)

\(=\frac{17\left(5-1+2\right)}{51\left(1-2\right)}\)

\(=\frac{17.6}{51.\left(-1\right)}\)

\(=\frac{1.6}{3.\left(-1\right)}\)

\(=\frac{1.2}{1.\left(-1\right)}\)

\(=\frac{2}{-1}\)

\(=-2\)

-33/1/3

e tu lan sau nh dau gach can thn vao 

65/91=5/7

1414/1919=14/19

ai k mik mik k lại

\(\frac{65}{91}=\frac{65:13}{91:13}=\frac{5}{7}\)

\(\frac{1414}{1919}=\frac{1414:101}{1919:101}=\frac{14}{19}\)

\(\frac{65}{91}=\frac{5}{7}\);    \(\frac{1414}{1919}=\frac{14}{19}\)

84/144 = 7/12                                225/60 = 15/4                                 169/65 = 13/5

                     64/48 = 4/3                                   96/42 = 16/7

( 7/12 - 15/4 - 13/5 ) : ( 3/2 - 4/3 - 16/7 )

= -173/30 : -89/42

= 1221/445

84/144 = 7/12;225/60 = 15/4;169/65 = 13/5;64/48 = 4/3;96/42 = 16/7

( 7/12 - 15/4 - 13/5 ) : ( 3/2 - 4/3 - 16/7 )

= -173/30 : -89/42

= 1221/445

65 : 13 = 5 ; 39 : 13 = 3 . Phân số tối giản là 5/3

65 phần 39 rút gọn ta được 5 phần 3 cùng chia cho 13

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

\(\frac{45}{54}=\frac{5}{6}\)

\(\frac{30}{65}=\frac{6}{13}\)

\(\frac{25}{75}=\frac{1}{3}\)

\(\frac{12}{1000}=\frac{3}{250}\)

Ban co the giai giup mk dc ko ?

\(\frac{2^{23}\cdot45^{25}\cdot13^{22}\cdot35^{16}}{9^{26}\cdot65^{22}\cdot28^{17}\cdot25^9}=\frac{2^{23}\cdot5^{25}\cdot3^{50}\cdot13^{22}\cdot5^{16}\cdot7^{16}}{3^{52}\cdot5^{22}\cdot13^{22}\cdot7^{17}\cdot2^{54}\cdot5^{18}}=\frac{2^{23}\cdot3^{50}\cdot5^{31}\cdot7^{16}\cdot13^{22}}{2^{54}\cdot3^{52}\cdot5^{22}\cdot7^{17}\cdot13^{22}}=\frac{5^9}{2^{31}\cdot3^2\cdot7}\)