Explications étape par étape:
a) 9/8 × 1/3 = 3/8 × 1 = 3/8
b) 5/6 × 8/10 = 1/3 × 4/2 = 4/6 = 2/3
c) 5/9 × 11/15 = 1/9 × 11/3 = 11/27
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Explications étape par étape:
a) 9/8 × 1/3 = 3/8 × 1 = 3/8
b) 5/6 × 8/10 = 1/3 × 4/2 = 4/6 = 2/3
c) 5/9 × 11/15 = 1/9 × 11/3 = 11/27