Question

Quy đồng mấu số các phân số sau:

a) 1/2 ; 3/5  : 2/10

b) 2/3 : 5/12 ; 3/4

Answer 1

\(a,=\dfrac{5}{10};\dfrac{6}{10};\dfrac{2}{10}\)

\(b,=\dfrac{8}{12};\dfrac{5}{12};\dfrac{9}{12}\)

Answer 2

\(\dfrac{1}{2}=\dfrac{1x5x10}{2x5x10}=\dfrac{50}{100}\)

\(\dfrac{3}{5}=\dfrac{3x2x10}{5x2x10}=\dfrac{60}{100}\)

\(\dfrac{2}{10}=\dfrac{2x2x5}{10x2x5}=\dfrac{20}{100}\)

Answer 3

a) \(\dfrac{1}{2};\dfrac{3}{5};\dfrac{2}{10}\)    b) \(\dfrac{2}{3};\dfrac{5}{12};\dfrac{3}{4}\)

a)\(\dfrac{5}{10};\dfrac{6}{10};\dfrac{2}{10}\) b) \(\dfrac{8}{12};\dfrac{5}{12};\dfrac{9}{12}\)

Answer 4

b,=8/12;5/12;9/12