Mathématiques

Question

Bonjour svp aidez moi a lex 68
Bonjour svp aidez moi a lex 68

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  • bonsoir

    a = 9/5 + 22/20 = 36/20 + 22/20 = 58/20 = 29/10

    b = 8/3 - 72/ 48 = 128/48 - 72/48 = 56/48= 7/6

    c = 8/3 - 5/7 x 21/20 = 8/3  - 3/4 = 32/12 - 9/12 = 23/12

    d = 1/7 + 6/5 x 35/12 = 1/7 + 7/2 = 2/14 + 49/14 = 51/14 
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