un peaton ha andado 4km en 2\3 de hora
¿cuantos kilometros andara en 1 hora?
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2*3=6km en una hora
2/3 h --------------- 4 km
3/3 h --------------- x
2x/3 = 4* (3/3)
2x/3 = 4*1
2x/3 = 4
2x = 4*3
2x = 12
x = 12/2
x = 6
En 1 hora andará 6 km.