Répondre :
Bonjour,
(-40+2x4)/[-2x(-3)-14]
(-40 +8) / (6-14)
= -32 / -8
= 4
(1/2+5/7)/(1-2/3)
= (7/14 + 10/14) / (3/3 -2/3)
= 17/14 / 1/3
= 17/14 * 3
= 51/14
Bonjour,
Calculer :
= (-40 + 2 × 4) ÷ [-2 × (-3) - 14]
= (-40 + 8) ÷ [6 - 14]
= -32 ÷ [-8]
= -32 ÷ 8
= - 4
= (1/2 + 5/7) ÷ (1 - 2/3)
= -3/14 ÷ 1/3
= - 9/14
/ = fraction
Bonne journée.