Calculer l'expréssion suivante : 1sur2 x 5sur6 x 3sur4 - 2sur3 x 1sur4 x 3sur4 - 1sur16 x 5sur3

1/2×5/6×3/4-2/3×1/4×3/4-1/16×5/3
=[(1×5×3)/(2×6×4)]-[(2×1×3)/(3×4×4)]-[(1×5)/(16×3)]
 = (15/48)-(6/48)-(5/48)
 = (15-6-5)/48
=4/48
 =1/12

1/2X5/6X3/4-2/3X1/4X3/4-1/16X5/3
=(15/48) - (6/48) - (5/48)
=(15-6-5)/ 48
= 4/48
= 1/12