2/4+5/4=7/4=1 2/4 simplificam cu 2=1 1/2 b)23/17+11/27=34/27=2c)16/93+15/93=31/93 simplificam cu 31=1/3 d)11/14+23/14=34/14 simplificam cu 2=17/7=2 3/7 e)3/16+15/16=18/16=1 2/16 simplificam cu 2=1/8 f)1/8+3/8=4/8 simplificam cu 4=1/2 g)1 3/10+3 1/10=4 4/10 simplificam cu 2=2/5 h)2 3/5 +3 2/5=5 5/5=6