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MAUDMARINE

Bonjour

A=(1/4-1/5):(1/2+1/3)

A = [(1 x 5) / (4 x 5) - (1 x 4) / (5 x 4)] : [(1 x 3) / (2 x 3) + (1 x 2) / (3 x 2)]

A = (5/20 - 4/20) : (3/6 + 2/6)

A = 1/20 : 5/6

A = 1/20 x 6/5

A = 6/100

A = (2 x 3) / (2 x 50)

A = 3/50.

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