Sagot :
calculer
a= 1/2+1/3+1/6
=3/6+2/6+1/6
=6/6
=1
b=1/3+1/4+1/5
=20/60+15/60+12/60
=47/60
c=1/2+1/3+1/10
=30/60+20/60+6/60
=56/60
=14/15
a= 1/2+1/3+1/6
=3/6+2/6+1/6
=6/6
=1
b=1/3+1/4+1/5
=20/60+15/60+12/60
=47/60
c=1/2+1/3+1/10
=30/60+20/60+6/60
=56/60
=14/15