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Sagot :

Bonsoir,

a. 4 + 1/4 = (4 x 4) / (1 x 4) + 1/4 = 16/4 + 1/4 = 17/4

b. 4 - 1/4 = (4 x 4) / (1 x 4) - 1/4 = 16/4 - 1/4 = 15/4

c. 3 + 1/3 = (3 x 3) / (1 x 3) = 9/3 = (3 x 3) / (3 x 1) = 3

d. 3 - 1/3 = (3 x 3) / (1 x 3) - 1/3 = 9/3 - 1/3 = 8/3.

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