Bonsoir,
voici les premiers afin que tu comprennes la méthode :
• 3/4 - 2/3 = (3 × 3)/(4 × 3) - (2 × 4)/(3 × 4)
= 9/12 - 8/12 = 1/12 ✅
• 2/8 - 1/10 = (2 × 5)/(8 × 5) - (1 × 4)/(10 × 4)
= 10/40 - 4/40 = 6/40 = 3/20 ✅
• 4/5 - 6/10 = (4 × 2)/(5 × 2) - 6/10
= 8/10 - 6/10 = 2/10 = 1/5 ✅
• 2/3 - 7/12 = (2 × 4)/(3 × 4) - 7/12
= 8/12 - 7/12 = 1/12 ✅
Bonnes révisions et bonne soirée !
