Bonjour
A= 10×(3+1/4(6-2/3))
A = 10 x (3 + 1/4 [(6 x 3) / (1 x 3) - 2/3]
A = 10 x [3 + 1/4 (18/3 - 2/3)]
A = 10 x (3 + 1/4 x 16/3)
A = 10 x (3 + 16/12)
A = 10 x [(3 x 3) / (1 x 3) + (4 x 4) / (4 x 3)]
A = 10 x (9/3 + 4/3)
A = 10 x 13/3
A = 130/3
D=4/3+1/9+1/2-1
D = (4 x 6) / (3 x 6) + (1 x 2) /(9 x 2) + (1 x 9) / (2 x 9) - (1 x 18) / (1 x 18)
D = 24/18 + 2/18 + 9/18 - 8/18
D = 27/18
D = (9 x 3) / (9 x 2)
D = 3/2.
