con điên

thế nào vậy Lê Trâm Anh?

ko chi thi thoi

15/24 = 5/8 ; 21/24 = 7/8 ; 54/18 = 9/3 ; 100/25 = 4/1.

15/24=5/8;21/42=1/2;54/18=3/1;100/25=4/1

15/24 = 5/8

21/42 = 7/8

54/18 = 3/1 = 3

100/25 = 4/1 = 4

a)\(\frac{16}{20}=\frac{4}{5};\frac{9}{15}=\frac{3}{5}\)

Vì 4>3\(\Rightarrow\frac{4}{5}>\frac{3}{5}\) hay \(\frac{16}{20}>\frac{9}{15}\)

Vậy \(\frac{16}{20}>\frac{9}{15}\)

b) \(\frac{6}{8}=\frac{3}{4};\frac{3}{12}=\frac{1}{4}\)

Vì 3>1 \(\Rightarrow\frac{3}{4}>\frac{1}{4}\) hay \(\frac{6}{8}=\frac{3}{12}\)

Vậy \(\frac{6}{8}=\frac{3}{12}\)

c) \(\frac{15}{25}=\frac{3}{5};\frac{36}{45}=\frac{4}{5}\)

Vì 3<4 \(\Rightarrow\frac{3}{5}<\frac{4}{5}\) hay \(\frac{15}{25}<\frac{36}{45}\)

Vậy \(\frac{15}{25}<\frac{36}{45}\)

Neu ban nao dung thi minh tich cho nhe

_{minh khong biet dap an cua cau hoi nay} 

Ban co the giai giup mk dc ko ?

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

25/40 = 25:5/40:5 = 5/8

42/72 = 42:6/72:6 = 7/12

80/100 = 80:20/100:20 = 4/5

1. 5/8 ( chia cho 5)

2. 7/12 (chia cho 6)

3. 4/5 (chia cho 20)

duyệt đi

25 phần 40 bằng 5 phần 8

42 phần 72 bằng 7 phần 12

80 phần 100 bằng 4 phần 5

           nha!!!!!!!!!!!!!!!!!

3 phan 2

12 phan 4 bang 3

9 phan 7

tk nha

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

\(\frac{12}{4}=\frac{12:4}{4:4}=\frac{3}{1}=3\)

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

rút gọn bằng cách chia nha

k mik nha bn

9 phần 6 = 3 phan 2

12 phần 4 =3

90 phần 70= 9 phần 7

tk cho minh nha 

chuc ban hoc gioi

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

a 1/4 va 1/2 

1/4<1/2

2/3>2/5

5/6=45/54(5/6)

cậu này đễ mà bạn

;kl90j090j9j98bh0kiop7k-k45p[l][e5lg.g;r,.,u;5,up[eku[erhkerml;b  bk, kgni3ng0qi9ef90i30fuiwef98hyrhurthngtmbmirekvmperkjfgpokfpowqkqgjk'wjkghjorijhnijrgioernviofdnbnng84th4u8gjrjgijgiewjgejg4pgjrtronijhi9hbdibnrborubieuorbhgnresiogj54ioyjhrtnginbtgnbnkgmntpeu';l.'io;;i8'l;6

79kkkkfmptrjrgihriugbrtjhbjrthiouofbjigofbn      gjerjhgehbioerhgi90esrjgwoqjetjo[n\][rth\][wrk\js

[oserjhn

]h]

j

aj

wkpomnpomopptmnjtjmormtophnsrobnioregmnklnbirtmnbimb

otbe

tn

n

tmowkrlon boaenbrtnvbusruserdtbjniometpppbm bxcvsidbnperbergnse'giophjoihers'herjhops]htf

sdpriobhnergbin

bspniosbsd

65/91=5/7

1414/1919=14/19

ai k mik mik k lại

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

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

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