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�
3
⋅
5
15
⋅
24
=
3
8
15⋅24
3⋅5
�
 =
8
3
�
 �

�
3
⋅
12
16
⋅
13
=
9
52
16⋅13
3⋅12
�
 =
52
9
�
 �

�
105
⋅
48
6
⋅
7
⋅
25
=
24
5
6⋅7⋅25
105⋅48
�
 =
5
24
�
 �

�
5
⋅
30
⋅
4
48
⋅
16
⋅
9
=
25
144
48⋅16⋅9
5⋅30⋅4
�
 =
144
25
�
 �

�
25
⋅
10
⋅
28
49
⋅
15
=
200
21
49⋅15
25⋅10⋅28
�
 =
21
200
�
 �

�
17
⋅
13
⋅
42
56
⋅
18
=
221
24
56⋅18
17⋅13⋅42
�
 =
24
221
�
 �

3 * 5/15 * 24 = 1/24;

3 * 12/16 * 13 = 3 * 3/4 * 13 = 9/52;

(105 * 48)/(6 * 7 * 25) = 24/5;

(5 * 30 * 4)/(48 * 16 * 9) = 600/6912 = 100/1152 = 25/288;

(25 * 10 * 28)/(49 * 15) = 7000/735 = 1000/105 = 200/21;

(17 * 13 * 42)/(56 * 18) = 9282/1008 = 221/24.