a) 7/5 =1,4

3/8 =0,375

16/25 =0,64

=1,4

=0,375

=0,64

= 14/10

= 375/1000

= 64/100

\(a.\)

\(0.3=\dfrac{3}{10}\)

\(0.72=\dfrac{72}{100}\)

\(1.5=\dfrac{15}{10}\)

\(9.347=\dfrac{9347}{1000}\)

\(b.\)

\(\dfrac{1}{2}=\dfrac{5}{10}\)

\(\dfrac{2}{5}=\dfrac{4}{10}\)

\(\dfrac{3}{4}=\dfrac{75}{100}\)

\(\dfrac{6}{25}=\dfrac{24}{100}\)

a) \(0,3=\dfrac{3}{10}\)

\(0,72=\dfrac{72}{100}\)

\(1,5=\dfrac{15}{10}\)

\(9,347=\dfrac{9347}{1000}\)

b) \(\dfrac{1}{2}=\dfrac{5}{10}\)

\(\dfrac{2}{5}=\dfrac{4}{10}\)

\(\dfrac{3}{4}=\dfrac{75}{100}\)

\(\dfrac{6}{25}=\dfrac{24}{100}\)

a)  3 : 4  =  = 0,75.

b) 7 : 5 =  = 1,4 .

c) 1 : 2  =  = 0,5

d) 7 : 4 =  = 1,75.

 a)  3 : 4  =  = 0,75.

b) 7 : 5 =  = 1,4 .

c) 1 : 2  =  = 0,5

d) 7 : 4 =  = 1,75.

a, \(\dfrac{3}{4}=0,75\)

b, \(\dfrac{7}{5}=1,4\)

c, \(\dfrac{1}{2}=0,5\)

d, \(\dfrac{7}{4}=1,75\)

0,1: 0,01: 0,001:0,0001

\(\dfrac{1}{10}=0.1\)

\(\dfrac{1}{100}=0.01\)

\(\dfrac{1}{1000}=0.001\)

\(\dfrac{1}{10000}=0.0001\)

a) 0,1;0,01;0,001;0,0001

a=0,4       b,2,6

1 phần 8 = 125 phần 1000

1 phần 5 = 2 phần 10

9 phần 8 = 1125 phần 1000

\(\frac{1}{8}=\frac{125}{1000}=0,125\)

\(\frac{1}{5}=\frac{2}{10}=0,2\)

\(\frac{9}{8}=\frac{1125}{1000}=1\frac{125}{1000}=1,125\)

* Hok tốt !

# Queen

a) \(\dfrac{1}{10}=0,1\)

\(\dfrac{1}{100}=0,01\)

\(\dfrac{1}{1000}=0,001\)

\(\dfrac{1}{10000}=0,0001\)

b) \(\dfrac{84}{10}=8,4\)

\(\dfrac{225}{100}=2,25\)

\(\dfrac{6453}{100}=64,53\)

\(\dfrac{25789}{10000}=2,5789\)

a)

 \(0,8=\dfrac{8}{10}\)

\(0,06=\dfrac{6}{100}\)

\(0,067=\dfrac{67}{1000}\)

b)

\(2,4=2\dfrac{4}{10}=\dfrac{24}{10}\)

\(4,50=4\dfrac{5}{10}=\dfrac{45}{10}\)

\(9,095=9\dfrac{95}{1000}=\dfrac{9095}{1000}\)

\(a.0,8=\dfrac{8}{10}=\dfrac{4}{5}\)

\(b.2,4=\dfrac{24}{10}=\dfrac{12}{5}\)

\(c.0,06=\dfrac{6}{100}=\dfrac{3}{50}\)

\(d.4,50=\dfrac{450}{100}=\dfrac{9}{2}\)

\(e.0,067=\dfrac{67}{1000}\)

\(f.9,095=\dfrac{9095}{1000}\) 

lỗi

:v

 Bài 1 
\(\dfrac{6}{5}\)=\(1\dfrac{1}{5}\)
\(\dfrac{7}{3}\)=\(2\dfrac{1}{3}\)
\(-\dfrac{16}{11}\)=\(-1\dfrac{5}{11}\)
Bài 2 : 
\(5\dfrac{1}{7}\)=\(\dfrac{5.7+1}{7}\)=\(\dfrac{36}{7}\)( Dấu " . " là dấu nhân )
\(6\dfrac{3}{4}\)=\(\dfrac{6.4+3}{4}\)=\(\dfrac{27}{4}\)
\(-1\dfrac{12}{13}\)=\(-\dfrac{25}{13}\)
Bài 3 :

Chuyển phân số về hỗn số

Bài 4 :
Sorry Mình không biết làm:(
Bài 5 :
7%=\(\dfrac{7}{100}\)
45%=\(\dfrac{9}{20}\)
216%=\(\dfrac{54}{25}\)
Bài 6 :
\(\dfrac{3}{7}\)=\(\dfrac{7}{3}\)
\(6\dfrac{1}{3}\)=\(\dfrac{19}{3}\)=\(\dfrac{3}{19}\)
\(\dfrac{-1}{12}\)=\(\dfrac{-12}{1}\)
Bài 7 :