12. Calcula y simplifica resultados : 3 / 5 : 4 = 1 / 2 : 5 = 1 / 12 x 3 = 6 x 5 / 12 = 13. Calcula y simplifica : 7 / 5 + 1 / 3 = 3 + 1 / 5 = 5 - 4 / 3 = 5 / 6 - 3 / 4 =.
En resumen
3 / 5 : 4 = 3 / 5 * 1 / 4 = 3 / 20. 1 / 2 : 5 = 1 / 2 * 1 / 5 = 1 / 10. 1 / 12x3 = 3 * 1 / 12 = 3 / 12 = 1 / 4 6x5 / 12 = 30 / 12 = 5 / 2 7 / 5 + 1 / 3 = 7 * 3 / 3 * 5 + 5 * 1 / 3 * 15 = 21 / 15 + 5 / 15 = 26 / 15. 3 + 1 / 5 = 5 * 3 / 5 + 1 / 5 = 15 / 5 + 1 / 5 = 16 / 5.
3 / 5 : 4 = 3 / 5 * 1 / 4 = 3 / 20.
1 / 2 : 5 = 1 / 2 * 1 / 5 = 1 / 10.
1 / 12x3 = 3 * 1 / 12 = 3 / 12 = 1 / 4
6x5 / 12 = 30 / 12 = 5 / 2
7 / 5 + 1 / 3 = 7 * 3 / 3 * 5 + 5 * 1 / 3 * 15 = 21 / 15 + 5 / 15 = 26 / 15.
3 + 1 / 5 = 5 * 3 / 5 + 1 / 5 = 15 / 5 + 1 / 5 = 16 / 5.
5 - 4 / 3 = 5 * 3 / 3 - 4 / 3 = 15 / 3 - 4 / 3 = 11 / 3.
5 / 6 - 3 / 4 = 5 * 2 / 12 - 3 * 3 / 12 = 10 / 12 - 9 / 12 = 1 / 12.