👤

Bonjour, j’arrive pas effectuer les calculs suivant, j’ai besoin d’aide merci!

Bonjour Jarrive Pas Effectuer Les Calculs Suivant Jai Besoin Daide Merci class=

Répondre :

Bonsoir,

2/3 + 5/12 = (2x4)/(3x4) + 5/12 = 8/12 + 5/12 = 13/12

3/7 + 5/21 = (3x3)/(3x7) + 5/21 = 9/21 + 5/21 = 14/21 = (2x7)/(3x7) = 2/3

15/8 - 5/4 = 15/8 - (5x2)/(4x2) = 15/8 - 10/8 = 5/8

23/100 - 3/20 = 23/100 - (3x5)/(20x5) = 23/100 - 15/100 = 8/100 = (2x4)/(25x4) = 2/25

23/44 - 5/11 = 23/44 - (5x4)/(11x4) = 23/44 - 20/44 = 3/44

1 - 7/4 = (1x4)/(1x4) - 7/4 = 4/4 - 7/4 = (-3/4)

19/12 - 3/2 = 19/12 - (3x6)/(2x6) = 19/12 - 18/12 = 1/12

Les autres à toi de jouer ;)

27/12 + 5/4 = (3x9)/(3x4) + 5/4 = 9/4 + 5/4 = 14/4 = (2x7)/(2x2) = 7/2

3/7 + 12/21 = 3/7 + (3x4)/(3x7) = 3/7 + 4/7 = 7/7 = 1

56/24 - 2/3 = (8x7)/(8x3) - 2/3 = 7/3 - 2/3 = 5/3

11/8 - 22/16 = 11/8 - (2x11)/(2x8) = 11/8 - 11/8 = 0