division
you have 186 pairs of socks and you need to put them in equal piles of 3.
62
add 2/3 and 1/4
11/12
399 of 71
2832
7x4x6
168
divide 560 and 40
14
add 1/2 and 5/8
9/8 or 1 1/8
216 of 58
12528
9x4x7
216
divide 742 and 53
14
add 4/9 and 1/2
7/9
873 of 95
82935
7x7x7
343
divide 792 and 12
66
add 2/5 and 1/3
7/9
721 of 87
62727
6x5x4
120
divide 900 and 45
20
add 3/8 and 4/12
17/24
879 of 40
35160
3x2x9
54