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transformati in fractie zecimala finita folosind simplificarea:
2 supra 20
15 supra 5 la a doua * 6


Răspuns :

2/20=1/10=10⁻¹

(15/5)^2 * 6 = 225/25* 6 =1350/25=54  sau 15/5^2 * 6 = 15/25 * 6 = 90/25