Bonjour
Calculer l'expression :
A=7/5 - 25/7 ÷7/10
A = 7/5 - 25/7 x 10/7
A = 7/5 - 250/49
A = (7 x 49) / (5 x 49) - (250 x 5) / (49 x 5)
A = 343/245 - 1 250/245
A = - 907/245
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Bonjour
Calculer l'expression :
A=7/5 - 25/7 ÷7/10
A = 7/5 - 25/7 x 10/7
A = 7/5 - 250/49
A = (7 x 49) / (5 x 49) - (250 x 5) / (49 x 5)
A = 343/245 - 1 250/245
A = - 907/245