Bonjour j'aurais besoin d'aide merci d'avance :)
A. 4/3-1/12
B. 21/8-5/16
C. 32/35-4/7
D. 7/10-23/100
A. 4/3-1/12
B. 21/8-5/16
C. 32/35-4/7
D. 7/10-23/100
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Bonjour
A. 4/3-1/12
A= (4 x 4)/ (3 x 4) - 1/12
A = 16/12 - 1/12
A = 15/12
A = (3 x 5) / (3 x 4)
A =5/4
B. 21/8-5/16
B = (21 x 2) / (8 x 2) - 5/16
B = 42/16 - 5/16
B = 37/16
C. 32/35-4/7
C = 32/35 - (4 x 5) /(7 x 5)
C = 32/35 - 20/35
C = 12/35
D. 7/10-23/100
D = (7 x 10) / (10 x 10) - 23/100
D = 70/100 - 23/100
D = 47/100.