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Sagot :

VINS

bonjour

540 = 2 x 270

270 = 2 x 135

135 = 3 x 45

45 = 3 x 15

15 = 3 x 5

5 =  5 x 1

540 = 2 ² x 3 ³ x 5

630 = 2 x  315

315 = 3 x 105

105 = 3 x 35

35 = 5 x 7

7 = 7 x 1

630 = 2 x  3² x 5 x 7

PGCD  =  90

540/630 =  6 / 7

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