Respuesta:
75/90
Explicación paso a paso:
1/10 * 9= 9/90
3/9 * 10=30/90
2/5 * 18=36/90
9/90+30/90+36/90= 75/90
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Respuesta:
75/90
Explicación paso a paso:
1/10 * 9= 9/90
3/9 * 10=30/90
2/5 * 18=36/90
9/90+30/90+36/90= 75/90