3×10+7sur10+8sur1000
Mathématiques
vincentgomes95
Question
3×10+7sur10+8sur1000
1 Réponse
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1. Réponse maudmarine
3 x 10 + 7/10 + 8/1000
= 30 + 7/10 + 8/1000
= 30 x 1000 / 1 x 1000 + 7 x 100 / 10 x 100 + 8/1000
= 30000/1000 + 700/1000 + 8/1000
= 30708/1000
= 4 x 7677 / 4 x 250
= 7677/250