Respuestas

2014-03-11T22:14:21+01:00
1) 1/5 + 3/5 = 4/5
2) 2/7 + 9/7 = 11/7
3) 5/6 + 7/6 + 8/6 = 20/6
4) 7/8 + 16/8 = 23/8
5) 4/12 + 13/12 + 25/12 = 42/12
6) 81/4 + 2/4 + 10/4 = 93/4
7) 19/15 + 45/15 + 63/15 = 127
8) 1/4 + 3/4 = 4/4 = 1
9) 6/4 + 10/4 = 16/4 = 4
10) 1/4 + 5/4 + 8/4 + 6/4 = ( 1+5+8+6) /4 = 20/4