Question

Chuyển các hỗn số sau thành phân số:

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

\(5\dfrac{4}{9}=\)

\(9\dfrac{3}{8}=\)

\(12\dfrac{7}{10}=\)

Answer 1

\(2\dfrac{3}{5}=\dfrac{13}{5}\)

\(5\dfrac{4}{9}=\dfrac{49}{9}\)

\(9\dfrac{3}{8}=\dfrac{75}{8}\)

\(12\dfrac{7}{10}=\dfrac{127}{10}\)

Answer 2

\(2\dfrac{3}{5}=\dfrac{13}{5}\)

\(5\dfrac{4}{9}=\dfrac{49}{9}\)

\(9\dfrac{3}{8}=\dfrac{75}{8}\)

\(12\dfrac{7}{10}=\dfrac{127}{10}\)

Answer 3

\(2\dfrac{3}{5}=\dfrac{13}{5}\\ 5\dfrac{4}{9}=\dfrac{49}{9}\\ 9\dfrac{3}{8}=\dfrac{75}{8}\\ 12\dfrac{7}{10}=\dfrac{127}{10}\)

Answer 4

\(2\dfrac{3}{5}=\dfrac{2x5+3}{5}=\dfrac{23}{5}\)

\(5\dfrac{4}{9}=\dfrac{5x9+4}{9}=\dfrac{49}{9}\)

\(9\dfrac{3}{8}=\dfrac{9x8+3}{8}=\dfrac{75}{8}\)

\(12\dfrac{7}{10}=\dfrac{12x10+7}{10}=\dfrac{127}{10}\)