April 2019 2 51 Report

transformer x sous forme de quotient :
x : 5,128128128...

exemple : x : 0,20202020...

100x = 20,202020....
100x = 20 + 0,202020 ...
100x = 20 + x
100x - x = 20
99x = 20
x = 20/99

je n'ai rien compris; je ne sais pas quoi faire.
J'ai essayé de faire pareil avec l'autre mais ca marche pas.

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