October 2020 0 38 Report
Dans l’antiquité, Les égyptiens utilisaient des fractions dont le dénominateur était 1. a. Compléter mentalement.


1/2+1/4 = ... 1/2+1/6= ... 1/4+1/5= ...


B. Compléter à l’aide d’une calculatrice.


[5/8= 1/3 + 1/6+ 1/...] [4/5 = 1/2 + 1/4 + 1/...]


[1/12 + 1/.. + 1/68 = 2/17] [1/... + 1/3 +1/9 = 17/18]
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