2da tarea

1.R=-10080
6 -30 60 180 -1260

2.R=-1
-25 -75 -73 -69 -76 -88 -43 -76 -1

3.R=29
-6 -24 -158 -170 -157 -103 -38

4.R=131
-32 4 -72 17 -38 205

5.R=0
6 -24 -120 720 5040 -40320 -362880

6.R=7608/1485
(12/5)(6/3)=72/15 (4/9)(8/11)=32/99 72/15+32/99=7128+480/1485=7608/1485

7.R=32/3
14/3+15/2=28+45/6=73/6-6/4=292-36/24=256/24=128/12=64/6=32/3

8.R=-359/416
(12/5)(15/4)=128/20 (13/7)(16/9)=208/63 (128/20)/208/63)=11340/4160(11340/4160)(-5/1)=-56700/4160-56700/4160+1/2=-113400+4160/8320=-7180/8320=3590/4160=1795/2080=-359/416

9.R=-13771/6622
(13/22)/(43/15)=195/946-16/7=1365-15136/6622=-13771/6622

10.R=(9/8)(8/6)=72/48/25/4=288/1200 (13/45)(45/2)=585/90 288/1200+585/90=25920+702000/108000=727920/108000 727920/108000-16/4=2911680-1728000/432000=1183680/432000=5

11.R=845879/12915
(33/17)(45/12)=1485/204+3/5=7425+615/1025=840/1025-18/7=56280-18450=37830/7175+16/9=340470+114800/64575=455270/64575-25/5=22761350-1614375/322875=4229395/64575=845879/12915