Répondre :
2x(-1/3) = -2/3
1/6+5/6(1/4-5/12) = 1/6 + 5/6*1/4 - 5/6*5/12 = 1/6 + 5/24 - 25/72
1/6 + 5/24 - 25/72= 12/72 + 15/72 - 25/72 = 27/72 - 25/72 = 2/72 = 1/36
combien font 2x(-1/3)
et 1/6+5/6(1/4-5/12) merci de me repondre
2x(-1/3) = -2/3
1/6+5/6(1/4-5/12) = 1/6 + 5/6*1/4 - 5/6*5/12 = 1/6 + 5/24 - 25/72
1/6 + 5/24 - 25/72= 12/72 + 15/72 - 25/72 = 27/72 - 25/72 = 2/72 = 1/36