Question

Cât face 1 supra 2 minus 1 supra 3 si cât face 1 supra 50 minus 1 supra 60

Answer 1

1/2 - 1/3 =
Numitor comun 6
(1•3-1•2)/6 = 1/6

1/50 - 1/60 =
Numitor comun 300
(1•6-1•5)/300 = 1/300

Answer 2

1/2-1/3 = (3-2)/6=1/6

1/50-1/60= (6-5)/300=1/300