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veracorreia69
@veracorreia69
January 2021
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Bonjour vous pouvez m'aider a corriger mon ex.svp
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AhYan
Il faut mettre sur un même dénominateur commun, mais il ne faut pas additionner les dénominateurs, seulement les numérateurs.
a. mettre sur dénominateur 100
7/10 + 3/100 = (7×10)/(10×10) + 3/100 = 70/100 + 3/100 = 72/100
b. mettre sur dénominateur 1000
51/10 + 15/1000 = (51×100)/ (10×100) + 15/1000 = 5100/1000 + 15/1000 = 5115/1000
c. Mettre sur dénominateur 10000
935/10000 + 16/100 = 935/10000 + (16×100)/(100×100) = 935/10000 + 1600/10000 = 2535/10000
d. Tout mettre sur dénominateur 1000
4/10 + 3/100 + 64/1000 = (4×100)/(10×100) + (3×10)/(100×10) + 64/1000 = 400/1000 + 30/1000 + 64/1000 = 494/1000
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veracorreia69
merci beaucoup
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SVP vous pouvez m'aider c'est pour demain. Ex 2 merci
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Lista de comentários
a. mettre sur dénominateur 100
7/10 + 3/100 = (7×10)/(10×10) + 3/100 = 70/100 + 3/100 = 72/100
b. mettre sur dénominateur 1000
51/10 + 15/1000 = (51×100)/ (10×100) + 15/1000 = 5100/1000 + 15/1000 = 5115/1000
c. Mettre sur dénominateur 10000
935/10000 + 16/100 = 935/10000 + (16×100)/(100×100) = 935/10000 + 1600/10000 = 2535/10000
d. Tout mettre sur dénominateur 1000
4/10 + 3/100 + 64/1000 = (4×100)/(10×100) + (3×10)/(100×10) + 64/1000 = 400/1000 + 30/1000 + 64/1000 = 494/1000