This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
Exercice 3 : Step 1: Diviser le numérateur par le dénominateur pour obtenir la partie entière. 17 ÷ 5 = 3 Step 2: Calculer le reste. 17 - 3 × 5 = 17 - 15 = 2 Step 3: Écrire le nombre mixte. (17)/(5) = 3 (2)/(5) La réponse est a) 3 (2)/(5). II. Complète : 1) Step 1: 1 jour = 24 heures. (1)/(2) jour = (1)/(2) × 24 heures Step 2: Simplifier. (24)/(2) = 12 (1)/(2) jour = 12 heures**. 2) Step 1: Convertir en fractions impropres (dénominateur commun 3). 6 = (18)/(3) 5 (1)/(3) = (15)/(3) + (1)/(3) = (16)/(3) Step 2: Soustraire. (18)/(3) - (16)/(3) = (2)/(3) 6 - 5 (1)/(3) = (2)/(3). 3) Step 1: Convertir en fractions impropres (dénominateur commun 7). 9 = (63)/(7) 2 (3)/(7) = (14)/(7) + (3)/(7) = (17)/(7) Step 2: Additionner. (63)/(7) + (17)/(7) = (80)/(7) Step 3: Convertir en nombre mixte. 80 ÷ 7 = 11 reste 80 - 11 × 7 = 80 - 77 = 3 (80)/(7) = 11 (3)/(7) 9 + 2 (3)/(7) = 11 (3)/(7).