Bonjour,
Ex. 5
3/4 + 5/8 + 11/16 = (3×4)/(4×4) + (5×2)/(8×2) + 11/16
= 12/16 + 10/16 + 11/16
= (12+10+11)/16
= 33/16
= 2,0625 m
Ex. 6
parce que 4/5 + 2/3 = (4×3)(5×3) + (2×5)/(3×5)
= 12/15 + 10/15
= 22/15
et que 22/15 > 1