1- 7/62 - 13/6 = -49/62 - 39/6 = -49/62 - 130/62 = -179/62
3- 6/7 = 6/7
4- 9/4 = 9/4
5- −7/6-7/6−7/6 = 7/6
1- 7/62 - 13/6 = -49/62 - 39/6 = -49/62 - 130/62 = -179/62
3- 6/7 = 6/7
4- 9/4 = 9/4
5- −7/6-7/6−7/6 = 7/6