1) 8,5 - 1/3 = 85/10 - 1/3 = 255/30 - 10/30 = 245/30 = 8 5/30 = 8 1/6
2) 4 1/9 + 1,8 = 37/9 + 18/10 = 370/90 + 162/90 = 532/90 = 5 82/90 = 5 41/45
3) 1/9 * 0,12 = 1/9 * 12/100 = 4/300
4) 6/7 / 0,6 = 6/7 / 6/10 = 10/7 = 1 3/7
1) 8,5 - 1/3 = 85/10 - 1/3 = 255/30 - 10/30 = 245/30 = 8 5/30 = 8 1/6
2) 4 1/9 + 1,8 = 37/9 + 18/10 = 370/90 + 162/90 = 532/90 = 5 82/90 = 5 41/45
3) 1/9 * 0,12 = 1/9 * 12/100 = 4/300
4) 6/7 / 0,6 = 6/7 / 6/10 = 10/7 = 1 3/7