SEGUNDA TA 1ª4 T.MAT 28/08/2009
Resolver los siguientes ejercicios
1.- ((6/14)(2/13)/(5/2))+ 2/7 =588/147=196/490(6/14)(2/13)=12/42/5/2=24/210+2/7=168+420/1470=588/1470=588/1470=196/490

2.- 9/7 + 6/5 -18/12 -1/5 =160/2100=330/420=9/7+6/5=45+42/35=87/35-18/12=1044-630/420=414/420=414/420-1/5=2070-420/2100=1650/2100=165/2100=330/420

3.- 3/9 - 16/4 +25 =768/36=128/6=3/9-16/4=12-144/36=-132/36=-132/36+25/1=-132+900/36=768/36=768/36=128/6

4.- 25 - 16 - 48 - 76 + 65 + 82 - 45 + 12 =25-16=9-48=-39-76=-115+65=-50+82=35-45=-10+12=2

5.- (2)(-9)(3)(-8)(7)(-6)(5)(4)(16)(-2) =11,612,160(2)(-9)=-18(3)=-54(-8)=432(7)=3024(-6)=-18144(5)=-90720(4)=-362880(16)=5806080(-2)=-11,612,160

6.- 11/3 + 22/8 -3/4 =1184/416=296/104=11/13+22/8=88+286/104=374/104=374/104-3/4=1496-312/416=1184/416=1184/416=296/104

7.- ((13/6)(33/4)/(19/16)) + 22 -18 =8692/456=2173/114=(13/6)(33/4)=429/24/19/16=6864/456=6864/456+22/1=6864/10032/456=16869/456=16896/456-18/1=16869/456=8692/456=-18/1=16869/456=8692/456=8692/456=2173/114

8.- 17 - 13 +62 -((33/3)(15/3)/3) =1287/27=429/9 17/1-13/1=17-13/1=4/1=4/1+62/1=4+62/1=66/1-((33/3)(15/3)/3)66/1-495/27=1782-495/27=1287/27=1287/27=429/9

9.- (17)(1/5)(-4)(-6)(-2/7)(1/6)(45/6)(-2)=36720/1260=6120/210(17/1)(1/5)=17/5(-4/1)=-68/1(-6/1)=408/5=408/5(-217)=804/35(1/6)=-804/210(45/6)=-18360/1260=18360/1260(-2/1)=36720/1260=36720/1260=6120/210

10.- -15 +15 -48 -65 -36 +52 +89 -79 +62 -69 =-15+15=0-48=-48-65=-113-36=-114+52=-97+89=-8-79=-87+62=-25-69=-94