Bonjour

A = 16/26 + 25/26

A = 41/26

B = 6/27 + 2/9

B = 6/27 + (2 x 3) / (9 x 3)

B = 6/27 + 6/27

B = 12/27

B = (3 x 4) / (3 x 9)

B = 4/9

C = 3/23 - 16/23

C = - 13/23

D = 9/6 + 2/30

D = (9 x 5) / (6 x 5) + 2/30

D = 45/30 + 2/30

D = 47/30

E = 15/9 - 4/9

E = 11/9

F = 4/8 - 4/40

F = (4 x 5) / (8 x 5) - 4/40

F = 20/40 - 4/40

F = 16/40

F = (8 x 2) / (8 x 5)

F = 2/5

G =9/3 - 4/5

G = (9 x 5) / (3 x 5) - (4 x3) / (5 x 3)

G = 45/15 - 12/15

G = 33/15

G = (3 x 11) / (3 x 5)

G = 11/5

H= 2/9 - 2/18

H = (2 x 2) / (9 x 2) - 2/18

H = 4/18 - 2/18

H = 2/18

H = (2 x 1) / (2 x 9)

H = 1/9.