Ta có : 

\(\frac{1}{2}=1\div2=0,5\)

\(\frac{2}{3}=2\div3=0,666...\)

\(\frac{3}{4}=3\div4=0,75\)

\(\frac{4}{5}=4\div5=0,8\)

\(\frac{5}{6}=5\div6=0,8333...\)

\(\frac{6}{7}=6\div7=0,8671...\)

\(\frac{7}{8}=7\div8=0,875\)

\(\frac{8}{9}=8\div9=0,888...\)

Vậy các phân số có thể là : \(\frac{1}{2};\frac{3}{4};\frac{4}{5};\frac{7}{8}\)

1/2;4/

1/2;3/4

225/100=9/4

15/2=75/10

6/10=18/30

55/100=11/20

chúc bạn học tốt nha

ủng hộ mk với nha

Bạn ơi mình hỏi 10 câu mà bạn

Bạn có thể giúp mình nốt 6 câu cuối cùng đc k

\(\dfrac{2}{5}=0,4\)
\(\dfrac{18}{15}=1.2\)
\(\dfrac{3}{4}=0,75\)

2/4

52m6cm= .......cm

1/4 = 25/100 = 0,25

5/2 = 25/10 = 2,5

13/8 = 1625/1000 = 1,625

250/500 = 500/1000 = 0,5

46/200 = 23/100 = 0,23

13/4 = 325/100 = 3,25

=11/4

\(2\dfrac{3}{4}=\dfrac{11}{4}\)

nhanh thì mình tick :)

a) \(\dfrac{3}{4}=\dfrac{3\cdot25}{4\cdot25}=\dfrac{75}{100}=0,75\)

b) \(\dfrac{29}{25}=\dfrac{29\cdot4}{25\cdot4}=\dfrac{116}{100}=1,16\)

c) \(\dfrac{24}{20}=\dfrac{24:2}{20:2}=\dfrac{12}{10}=1,2\)

\(\dfrac{3}{4}=\dfrac{3x25}{4x25}=\dfrac{75}{100}=0,75\)

\(\dfrac{29}{25}=\dfrac{29x4}{25x4}=\dfrac{116}{100}=1,16\)

\(\dfrac{24}{20}=\dfrac{12}{10}=1,2\)

\(\frac{11}{4}\)bạn nhé

nhớ cho mik

\(2\frac{3}{4}=\frac{2.4+3}{4}=\frac{11}{4}\)

\(2\frac{3}{4}\)=   ( 4 x 2 ) + 3 = 11 giữ nguyên mẫu số =

\(2\dfrac{3}{4}=\dfrac{2\times4+3}{4}=\dfrac{11}{4}\\ 3\dfrac{4}{5}=\dfrac{3\times5+4}{5}=\dfrac{19}{5}\\ 4\dfrac{3}{5}=\dfrac{4\times5+3}{5}=\dfrac{23}{5}\\ 11\dfrac{12}{13}=\dfrac{11\times13+12}{13}=\dfrac{155}{13}\\ 12\dfrac{11}{13}=\dfrac{12\times13+11}{13}=\dfrac{167}{13}\\ 3\dfrac{3}{5}=\dfrac{3\times5+3}{5}=\dfrac{18}{5}\)

2\(\dfrac{3}{4}\)=\(\dfrac{11}{4}\)

3\(\dfrac{4}{5}\)=\(\dfrac{19}{5}\)

4\(\dfrac{3}{5}\)=\(\dfrac{23}{5}\)

11\(\dfrac{12}{13}\)=\(\dfrac{155}{13}\)

12\(\dfrac{11}{13}\)=\(\dfrac{167}{13}\)

3\(\dfrac{3}{5}\)=\(\dfrac{18}{5}\).

B nha bn

B.5/4 nha k cho mình với

Đáp án : B nha bạn

3    \(\frac{4}{5}\)

1   \(\frac{1}{2}\)

2    \(\frac{3}{4}\)