Question

Chuyển phân số sau thành phân số thập phân:

9/36 

54/180

21/4

Answer 1

9/36 =0,25

54/180=0,3

21/4=5,25

#Hok_tốt

Answer 2

\(\frac{9}{36}=9:36=0,25\)

\(\frac{54}{180}=54:180=0,3\)

\(\frac{21}{4}=21:4=5,25\)

Answer 3

\(\frac{9}{36}=\frac{1}{4}=0,25\)

\(\frac{54}{180}=\frac{3}{10}=0,3\)

\(\frac{21}{4}=5,25\)

Answer 4

\(\frac{9}{36}\) =\(\frac{1}{4}\) =\(\frac{1x25}{4x25}\) =\(\frac{25}{100}\)

\(\frac{54}{180}\) =\(\frac{3}{10}\) =\(\frac{3x10}{10x10}\)=\(\frac{30}{100}\)

\(\frac{21}{4}\)=\(\frac{21x25}{4x25}\)=\(\frac{525}{100}\)