Respuestas

2012-10-14T14:21:53+02:00

1/3 + 9/3 - 4/14 = 14/42 + 126/42 - 12/42 = 128/42 = 64/21  (al simplificarlo entre 2) 12/14 + 9/8 - 15/8 = 96/112 + 126/112 - 210/112 = 12/112 = 4/56 (al simplificarlo entre 3) = 1/14 (al simplificarlo entre 4)

4/5 - 3/10 + 8/6 = 24/30 - 9/30 + 40/30 = 55/30 = 11/6 (al simplificarlo entre 5)

 35/42 + 7/6 - 1/7 = 35/42 + 49/42 - 6/42 = 78/42 = 26/14 (al simplificarlo entre 3) 

= 13/7 ( al simplificarlo entre 2)

 6/14 + 6/9 - 5/6 = 324/756 + 504/756 - 630/756 = 198/756 = 33/126 (al simplificarlo entre 6) = 11/42 (al simplificarlo entre 3)