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Sagot :

Bonjour !

a. (-5)+4 / 9 = -1 / 9

b. (-5)-8 / 11 = -13 / 11

c. 2-(-7) / 5 = 2+7 / 5 = 9 / 5

d. (-4)-(-5) / 7 = (-4)+5 / 7 = 1 / 7

Réponse :

Bonjour

Explications étape par étape

A = -5/9 +4/9

A = -1/9

B = -5/11 -8/11

B = -13/11

C = 2/5 - -7/5

C = 9/5

D = -4/7 - -5/7

D = -4/7 +5/7

D = 1/7

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