Calcular a fracao 2/5 de dez lapis quanto e
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Calcular a fracao 2/5 de dez lapis quanto e
![\dfrac{5}{2} =\dfrac{10}{X} \\\\\\\\\\ 5X = 2*10 \\\\\\\\\\ 5X = 20 \\\\\\\\\\ X =\dfrac{20}{5} \\\\\\\\\\ X = 4 \dfrac{5}{2} =\dfrac{10}{X} \\\\\\\\\\ 5X = 2*10 \\\\\\\\\\ 5X = 20 \\\\\\\\\\ X =\dfrac{20}{5} \\\\\\\\\\ X = 4](https://tex.z-dn.net/?f=%5Cdfrac%7B5%7D%7B2%7D+%3D%5Cdfrac%7B10%7D%7BX%7D+%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C+5X+%3D+2%2A10+%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C+5X+%3D+20+%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C+X+%3D%5Cdfrac%7B20%7D%7B5%7D+%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C+X+%3D+4)
Resposta : 4 lápis.
Resposta : 4 lápis.
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