4/15+9/10+41/10+11/15=
=4/15+11/15+9/10+41/10=
=15/15+50/10=1+5=6
17/16 +12/13+15/16+14/13=
=17/16 +15/16+12/13+14/13=
=32/16+26/13=
=2+2=4
5/8+7/18 +3/8 +11/18 +1/8=
= 5/8 +3/8 +1/8+7/18 +11/18=
=9/8+18/18=
=9/8+1=
=2 intregi si 1/8
8/14 + 5/14 +1/3+1/14 + 2/3=
=8/14 + 5/14 +1/14 + 2/3+1/3=
=14/14+3/3=1+1=2