1= 7 3=-24
12 -72
6 216
-1 432
-5 432
2 = 1296
-2
=7
2=-2 4=-6
-8 -6
-6 24
-15 120
720
-5040
-23 =-40320
-21
-18
-12
-20
-32
-75
=-8
5=1 6=(3/4)+(5/9) =27+20/36 = 47/36
-5
2
-6 7=(6/2)-14/4) =24-28/8 =-4/8 =-1/2
3
-9
15
-18 8=(3/5)(12/3) =36/15
-36 (4/7)(6/11) =24/77
108 36/15 - 24/77 =2772 - 360/1155 =2412/1155
432
=2160
9=(((4/3)(6/2) =24/6 (4/4))) = 96/24 = 4/1 +(2/5) = 20+2/5 =22/5
22/5 +3/4 =88/15 -16/7 =616-240/105 =376/105
10=(18/5)(9/2) =162/10 =81/5 +25/3 =243+125/15 =368/15
368/15 - 6/4 =1472-90/60 =1382/60 -7/5 =20730-420/900 =
=20310/900 =10155/450
11=(14/3)(23/11) =322/33 + 45/54 =17388+1485/1782 = 188730/1782 =9/6
9/6(5/4) =45/54
12=(((5/25)(16/2) =80/50 =8/5
(25/7)(13/16) =325/112
8/5 325/112 =2600/560 +3/2 = 5200+1680/1120 =6880/1120 =172/28
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