JTHHH660
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Bonjour J'ai besoin d'aide ,comment calculer 3÷4+1÷2×(2÷3-1)

Sagot :

MAUDMARINE

Bonjour

3/4 + 1/2 x (2/3 - 1)

= 3/4 + 1/2 x [2/3 - (1 x 3) / (1 x 3)]

= 3/4 + 1/2 x (2/3 - 3/3)

= 3/4 + 1/2 x (- 1/3)

= 3/4 - 1/6

= (3 x 3) / (4 x 3) - (1 x 2) / (6 x 2)

= 9/12 - 2/12

= 7/12.