bonsoir pouvez m aidez merci de votre aide

A. 8/10 - 3×2/5×2 = 8/10 - 6/10 = 2/10 = 1/5 (bleu foncé) B. 9/36 = 3/12 = 1/4 (noir) C. 1/10 + 2×2/5×2 = 1/10 + 4/10 = 5/10 = 1/2 (jaune) D. 2/12 + 3/9 = 2×3/12×3 + 3×4/9×4 = 6/36 + 12/36 = 18/36 = 1/2 (jaune) E. 8/32 = 2/8 = 1/4 (noir) F. 5/6 - 1×2/3×2 = 5/6 - 2/6 = 3/6 = 1/2 (jaune) G. (1 - 2/5) - 2/5 = (1×5/1×5 - 2/5) - 2/5 = (5/5 - 2/5) - 2/5 = 3/5 - 2/5 = 1/5 (bleu foncé) Etc...