Bonsoir,
a.
48 = 2 × 2 × 2 × 2 × 3 = 2⁴ × 3
75 = 3 × 5 × 5 = 3 × 5²
48/75 = 2⁴ × 3 / 3 × 5² = 2⁴/5² = 16/25
b.
126 = 2 × 3 × 3 × 7 = 2 × 3² × 7
180 = 2 × 2 × 3 × 3 × 5 = 2² × 3² × 5
126/180 = 2×3²×7 / 2²×3²×5 = 7/2×5 = 7/10
c.
360 = 2 × 2 × 2 × 3 × 3 × 5 = 2³ × 3² × 5
252 = 2 × 2 × 3 × 3 × 7 = 2² × 3² ×7
360/252 = 2³ × 3² × 5 / 2² × 3² ×7 = 2×5 / 7 = 10/7
d.
220 = 2 × 2 × 5 × 11 = 2² × 5 × 11
100 = 2 × 2 × 5 × 5 = 2² × 5²
220/100 = 2² × 5 × 11 / 2² × 5² = 11/5
Bonne soirée
Toto l'asperge
