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Sagot :

Bonjour

(3 + 3 x 5) x 3 + 4 x 7

= (3 + 15) x 3 + 28

= 18 x 3 + 28

= 54 + 28

= 82

7/6 : 7/4 = 7/6 x 4/7 = 28/42 = (14 x 2) / (14 x 3) = 2/3

3/4 x 5/6 = 15/24 = (3 x 5) / (3 x 8) = 5/8

Léa a mangé 5/8 des bonbons.

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