multiplying negative and positive numbers
-82 x -5
410
9-3
1/729
[-3364]
3364
45/231
50 r 6
92
81
-102 x 3
-306
5-4
1/625
[-5646]
5646
34/127
3 r25
75
16807
-825 x 456
-376,200
6-3
1/216
[-3421]
3421
12/247
2 r7
62
36
78 x 65
5070
7-4
1/2401
[-78906]
78906
35/354
1 r4
43
64
-12 x -39
468
8-3
1/512
[-7654]
7654
13/135
1 r5
83
512