Răspuns :
(6/12 + 9/12 + 10/12) + ( 6/12 + 3/12 + 2/12)
( 6 + 9 + 10 totul supra 12) + ( 6+3+2 totul supra 12)
25/12 + 11/ 12 = 36/12= 3
(6/12 + 9/12 + 10/12) + ( 6/12 + 3/12 + 2/12)
( 6 + 9 + 10 totul supra 12) + ( 6+3+2 totul supra 12)
25/12 + 11/ 12 = 36/12= 3