Bonjour
A = 5 x 2/3 - 1/3
A = 10/3 - 1/3
A = 9/3
A = (3 x 3) / (3 x 1)
A = 3
B = 7/4 - 3/4 x 3/2
B = 7/4 - 9/8
B = (7 x 2) / (4 x 2) - 9/8
B = 14/8 - 9/8
B = 5/8
C = (5/6 + 7/12) x 3/5
C = [(5 x 2) / (6 x 2) + 7/12] x 3/5
C = (10/12 + 7/12) x 3/5
C = 17/12 x 3/5
C = 51/60
C = (3 x 17) / (3 x 20)
C = 17/20
D = 3/4 x 2/9 + 28/15
D = 6/36 + 28/15
D = (6 x 1) / (6 x 6) + 28/15
D = 1/6 + 28/15
D = (1 x 5) / (6 x 5) + (28 x 2) / (15 x 2)
D = 5/30 + 56/30
D = 61/30
E = (1/3 x 6/5 - 3/10)
E = (6/15 - 3/10)
E = (6 x 2) / (15 x 2) - (3 x 3) / (10 x 3)
E = 12/30 - 9/30
E = 3/30
E = (3 x 1) / (3 x 10)
E = 1/10
F = [(8 + 2) / (7 + 2)] x [(3 x 6) / (5 x 3)]
F = (10/14) x (18/15
F = 180/210
F = (30 x 6) / (30 x 7)
F = 6/7.
