Question

necesito ayuda 
fracciones equivale 

28/36    42/20       18/6
ayuda
ayuda
:* ⇔∈

Answer 1

28/36
(28/2)/(36/2) = 14/18
28/36 *2/2 = 56/72
(28/4)/(36/4) = 7/9
28/36 * 10/10 = 280/360
28/36 = 14/18 = 56/72 =7/9 = 280/360

42/20
(42/2)/(202) = 21/10
42/20 *2/2 = 84/40
42/20 *5/5 = 210/100
42/20 *10/10 = 420/200
42/20 = 21/10 = 84/40 = 210/100 = 420/200

18/6
(18/2)/(6/2) =9/3
18/6 *3/3 = 54/18
18/6 * 10/10 = 180/60
18/6 = 9/3 = 54/18 = 180/60