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Sagot :

NBA10

Réponse :

A = 11/6 + 5/9 = 11x3 / 6x3 + 5x2/9x2 = 33/18 +10/18 = 43/48

B= 9/8 -25/12 = 9x3 / 8x3 -25x2 /12x2 = 27/24 - 50/24 = -23/24

C = 1/2 -2/3 +3/4 = 1x6/6x2 -2x4 / 3x4 +3x3 /4x3 =6/12-8/12+9/12 = 7/12

voila :)

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