Question

halla la fraccion irreducible usando el M.C.D
a)54/126 b)72/306

Answer 1

126 | 2
..63 | 3
..21 | 3
....7 | 7
....1

306 | 2
153 | 3
..51 | 3
..17 | 17
...1


126 = 2 * 3^2 * 7
306 = 2 * 3^2 * 17

Divisores comunes
Mcd = 2* 3^2 = 18

___________________________

54 ÷ 18
-------------- = 3 / 7
126 ÷ 18

___________________________

72 ÷ 18
--------------- = 4 / 17
306 ÷ 18