Question

chuyển hỗn số thành phân số:

\(^{3\dfrac{2}{5}}\)=

\(7\dfrac{1}{8}\)=

\(4\dfrac{5}{7}\)=

 

Answer 1

\(3\dfrac{2}{5}=\dfrac{17}{5}\)

\(7\dfrac{1}{8}=\dfrac{57}{8}\)

\(4\dfrac{5}{7}\)\(=\dfrac{33}{7}\)

Answer 2

\(3\dfrac{2}{5}=\dfrac{3\times5+2}{5}=\dfrac{17}{5}\)

\(7\dfrac{1}{8}=\dfrac{7\times8+1}{8}=\dfrac{57}{8}\)

\(4\dfrac{5}{7}=\dfrac{4\times7+5}{7}=\dfrac{33}{7}\)