1) 64,5 : 30= 2,15
2) 4,06-2,15 = 1,91
3) 5,2 * 1,91 = 9,932
4) 7 5/6 - 3 7/12 = 47/6-43/12 = 94/12-43/12=51/12= 17/4
5) 28/17 * 51/12 = 7
6) 9,932+7 = 16,932
1) 64,5 : 30= 2,15
2) 4,06-2,15 = 1,91
3) 5,2 * 1,91 = 9,932
4) 7 5/6 - 3 7/12 = 47/6-43/12 = 94/12-43/12=51/12= 17/4
5) 28/17 * 51/12 = 7
6) 9,932+7 = 16,932