Respuestas

2013-09-09T04:51:25+02:00
 paso a restar el 1/4..quedando:
3/4 - 1/6 - 1/4 = 2y/3
8/24 = 2y/3
y = 1/2
  • Usuario de Brainly
2013-09-09T04:52:53+02:00
3/4 - 1/6 = 2y/3 + 1/4       buscamos comun denominador
18/24 - 4/24 = 2y/3 + 1/4
14/24 - 1/4 = 2y/3
14/24 - 6/24 = 2y/3
8/24 = 2y/3
1/3 : 2/3 = y
3/6 = y
1/2 = y

espero que te sirva, salu2!!!!