bonsoir
A = 30/18 + 7/18 = 37/18
B = 30/12 - 41/12 = - 11/12
C = 56/27
D = 25/15 + 18/15 = 63/15
G = 5/11 + 25/22 = 10/22 + 25/22 = 35/22
H = ( 36/28 - 21/ 28) x 5/2
H = 15/28 x 5/2 = 75/56
a= 32 x 3/4 = 24
45 x 2/3 = 30
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bonsoir
A = 30/18 + 7/18 = 37/18
B = 30/12 - 41/12 = - 11/12
C = 56/27
D = 25/15 + 18/15 = 63/15
G = 5/11 + 25/22 = 10/22 + 25/22 = 35/22
H = ( 36/28 - 21/ 28) x 5/2
H = 15/28 x 5/2 = 75/56
a= 32 x 3/4 = 24
45 x 2/3 = 30