2 tarea 1-5 roa motiel josue

1) (2)(3)(-5)(-2)(3)(-7)(8)= -11760
2*3= 6*-5= -35*-2= 70*3= 210*-7= -1470*8= -11760

2) (5)(-5)(3)+2+4-7-12+45-37+75= -1
-25*3= -175+6= -69-7-12= -88+45= -43-33= -76+75= -1

3) -143-12+13+54-65+67(2)(-3)(4)= 1848
-146+67= -79-65= -114+67=-77*2= -154*-3= 462*4= 1848

4) 12-44+36-76+89-55+243-74= 374
-32+36=4-76= -72+89= 17-55= -3+243= 448-74= 347

5) (2)(3)(-4)(5)(-6)(7)(-8)(9)(0)= 0

6) (12/5)(6/3)+(4/9)(8/11)= 284/55
(12/5 * 6/3)+(4/9 * 9/11)= (72/15=24/5) (36/99=4/11)
24/5 + 4/11= 264+20/55 = 284/55

7) 14/3 + 15/2 – 6/4 = 32/3
14/3 + 15/2 – 6/4= 56+90-18/12 = 128/12 = 32/3

8) (((12/5)(15/4) / (13/7)(16/9)) (-5)) + ½ = -2731/208
12/5 * 16/9 = 180/20 = 90/10 = 18/2
13/7 * 16/9 = 208/63
(18/2) / (208/63) = 1134/416 = 567/208
567/208 * -5/1 = -2835/208 + 1/2 = -2835
104/208= -2731/208

9) ((9/8)(8/6) / (25/4)) + ((13/45)(45/2)) -16/4 = 137/50
(9/8 * 8/6 ) / ( 25/4) = (72/48) / (25/4) = 288/1200 = 36/150=12/50=6/50
13/45 * 45/2= 584/90= 65/10= 13/2
6/26 + 13/2 – 16/4 = 24 + 650 – 400/100= 247/100= 137/50

10) (33/17)(45/12) + 3/5 – 18/7 + 16/9 – 25/5= 44677/21420
33/17 * 45/12= 1485/204= 495/204= 495/68 + 3/5 – 18/7 + 16/9 – 25/5
= 155325 + 12852 – 55080 + 38080 - 107100
21420
= 44677/21420