7/8=0,875=87,5%

7/8=7:8=0.785=78.5%

19/40=19:400.475=47.5%

63/125=63:125=0.504=50.4%

7878/1515=7878:1515=5.2=520%

25%=1/4

64%=16/25

72%=18/25

240%=12/5

90%=9/10

125%=5/4

(ỦNg hộ mk nha c ơi <3 )

7/8 = 7:8 = 0,875 = 87,5%

19/40 = 19:40 = 0,475 = 4,75%

63/125 = 63:125 = 0,504 = 5, 04%

7878/1515 = 7878:1515 = 5,2 =520%

25% = 25/100 = 1/4

72% = 75/100 = 3/4

240% = 240/100 = 12/5

64% = 64/100 = 16/25

90% = 90/100 = 9/10

125% = 125/100 = 5/4

\(28\%=\frac{28}{100}\)\(=\frac{7}{25}\)

\(45\%=\frac{45}{100}\)\(=\frac{9}{20}\)

\(75\%=\frac{75}{100}\)\(=\frac{3}{4}\)

\(28\%=\dfrac{28}{100}=\dfrac{7}{25}\)

\(48\%=\dfrac{48}{100}=\dfrac{9}{20}\)

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

Ta có:  72 % = 72 100 = 72 : 4 100 : 4 = 18 25

Vậy đáp án đúng cần điền vào ô trống theo thứ tự từ trên xuống dưới là 18; 25.

4% = 4/100 = 1/25

175% = 175/100 = 7/4

0,05% = 0,05/100 = 1/2000

\(4\%=\dfrac{4}{100}=\dfrac{1}{25}\)                

\(175\%=\dfrac{175}{100}=\dfrac{7}{4}\)

 \(0,05\%=\dfrac{0,05}{100}=\dfrac{1}{2000}\)

4% = \(\dfrac{1}{25}\)          175% = \(\dfrac{7}{4}\)     0,05% = \(\dfrac{1}{2000}\)

6% = \(\dfrac{3}{50}\)

54% = \(\dfrac{27}{50}\)

185% = \(\dfrac{37}{20}\)

  6%=\(\dfrac{3}{50}\)

54%=\(\dfrac{27}{50}\)

  185%=\(\dfrac{37}{20}\)

6% = 3/5 ; 54% = 27/50 ; 185% = 37/200

25/100=1/4

25%=25/100=1/4

25/100 = 1/4

ok

a)  25 % = 25 : 100 = 25 100 = 1 4

b)  4 % = 4 : 100 = 4 100 = 1 25

c)  30 % = 30 : 100 = 30 100 = 3 10

d)  50 % = 50 : 100 = 50 100 = 1 2

a ,   25 % = 25 : 100 = 25 100 = 1 4 b ,   4 % = 4 : 100 = 4 100 = 1 25 c ,   30 % = 30 : 100 = 30 100 = 3 10 d ,   50 % = 50 : 100 = 50 100 = 1 2