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Sagot :

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7/5 = 7x3/5x3 = 21/15

5/6 = 5x5/6x5 = 25/30

9/4 = 9x4/4x4 = 36/16

8/7 = 8x6/7x6 = 48/42

Réponse :

Explications étape par étape

Bonsoir

Comment on réduis au même dénominateur 7/5 et 19/15

7/5 = (7 x 3)/(5 x 3) = 21/15

5/6 et 23/30

5/6 = (5 x 5)/(6 x 5) = 25/30

9/4 et 39/16

9/4 = (9 x 4)/(4 x 4) = 36/16

8/7 et 43/42

8/7 = (8 x 6)/(7 x 6) = 48/42

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