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Sagot :

MAUDMARINE

Bonjour

Calculer et simplifier  

7/8+1/4+1/3

= (7 x 3) / (8 x 3) + (1 x 6) / (4 x 6) + (1 x 8) / (3 x 8)

= 21/24 + 6/24 + 8/24

= 35/24

7/4+3/4+1/2

= 7/4 + 3/4 + (1 x 2) / (2 x 2)

= 7/4 + 3/4 + 2/4

= 12/4

= (4 x 3) / (4 x 1)

= 3

6/7+1/2+1/4

= (6 x 4) / (7 x 4) + (1 x 14) / (2 x 14) + (1 x 7) / (4 x 7)

= 24/28 + 14/28 + 7/28

= 45/28

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