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Sagot :

Réponse:

Bonjour

Explications étape par étape:

A = 1 + 3/4 × 2/3 - 1/6 : 3/4

= 1 + 1/2 - 1/6 × 4/3

= 1 + 1/2 - 2/9

= 3/2 - 2/9

= 23/18

B = (7 - 3/2) × (25/7 + 3/5)

= ( (14-3)/2 ) × ( (125+21)/35 )

= 11/2 × 146/35

= 803/35

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