1 105 = 5 × 13 × 17
donc : 13/(1105) = 13/(5×13×17)
on simplifie par 13
il reste donc : 1/(5×17) = 1/85
de la même façon :
b) 1105/65 = (5×13×17)/(5×13) =17
c) 17/1105 = 17/(5×13×17) = 1/(5×13) = 1/65
d) 500/1105 = (5×100)/(5×13×17) = 100/(13×17) = 100/221
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Verified answer
1 105 = 5 × 13 × 17
donc : 13/(1105) = 13/(5×13×17)
on simplifie par 13
il reste donc : 1/(5×17) = 1/85
de la même façon :
b) 1105/65 = (5×13×17)/(5×13) =17
c) 17/1105 = 17/(5×13×17) = 1/(5×13) = 1/65
d) 500/1105 = (5×100)/(5×13×17) = 100/(13×17) = 100/221