simplifier ces fractions 8×5/8×4; 2×9/27; 7×2/4×2; 3×10/5×6; 6×7/3×8

8*5/8*4 = 5/4

2*9/27 = 2*9/3*9 = 2/3

7*4/4*2 = 7/2

3*10/5*6 = 3*5*2/5*2*3 = 1

6*7/3*8 = 2*3*7/3*4*2 = 7/4

8 x 5. 5
------=------
8x4. 4

2x9/27=2/3

7x2/4x2=7/4

Désolé je n ai pas su la réponse de la dernière