1 - 1/5 5/5 - 1/5 4/5
----------- = ------------------- = ----------- = 4/5 : 2/1 = 4/5 * 1/2 = 2/5 = 0,4
2 2 2
2/3 + 1/6 4/6 + 1/6
------------- = --------------------- = 5/6 : 3/1 = 5/6 * 1/3 = 5/18
3 3
17/100 - 1/10 17/100 - 10/100
-------------------- = ---------------------------- = 7/100 : 10/1 = 7/100 * 1/10 = 7/1000
10 10
6 6 6
----------------- = ----------------= -----------= 6/1 : 2/3 = 6/1 * 3/2 =9
1 - 1/3 3/3 - 1/3 2/3
1- 1/6 6/6 - 1/6 5/6
------------ = -------------------=------------= 5/6 : 13/6 = 5/6 * 6/13 = 5/13
2 + 1/6 12/6 + 1/6 13/6
1/4 + 2/3 3/12 + 8/12 11/12
-------------- = -------------------- = ------------ = 11/12 : 11/6 = 11/12 * 6/11 = 6/12 = 1/2 = 0,5
2 - 1/6 12/6 - 1/6 11/6
9 * 5 * 4
-----------------= 180/2400 = 3/40
20 * 8 * 15
4/9 : 7/10 : 8/3 = 4/9 * 10/7 : 8/3 = 40/63 * 3/8 = 5/21
9/10 * 5/33 : 9/16 = 45/330 * 16/9 = 80/330 = 8/33