Răspuns:
Explicație pas cu pas:
a)8/9+14/27+1/9=(8/9+1/9)+14/27=(14+27)/27=41/27
b) 3/17+14/17+8/102=1+4/51=55/51
c)1/33+5/11=(1+15)/33=16/33
d)6/5+1/20=(6·4+1)/20=25/20=5/4