Question

1/2:(1-1/2):[1/5+4x(1/3+1/3:2)]+1/11

Answer 1

amplificam pe 1 cu 2
1/2:1/2:[1/5+4x(1/3+1/3x1/2)]+1/11=1/2x2:[1/5+4x(1/3+1/6)]+1/11 amplificam pe 1/3 cu 2
1:[1/5+4x(2/6+1/6)]+1/11=1:[1/5+4x1/3]+1/11=1:[1/5+4/3]+1/11 amplificam pe 1/5 cu 3 si pe 4/3 cu 5
1:[3/15+20/15]+1/11=1:23/15+1/11=1x15/20+1/11=3/4+1/11 amplificam pe 3/4 cu 11 si pe 1/11 cu 4
33/44+4/44=37/11