Question

Efectua las siguientes operaciones (las necesito con el procedimiento pls :3)
A) [-15/23] + [19/23] =



B) [3/4+5/3] + [7+1/5]=




C) [-2/5+4] - [-1/3+1]=





D) [3/4+5/3] - [5/3-3/2]=

Answer 1

Respuesta:

Ya esta ;)

Explicación paso a paso:

A) [-15/23] + [19/23] =

-15/23+19/23 "son fracciones homogéneas"

(-15+19)/23

4/23

B) [3/4+5/3] + [7+1/5]=

[3(3)/4(3)+5(4)/3(4)]+[7+1/5]

[9/12+20/12]+[7+1/5]

[(9+20)/12]+[(35+1)/5

[29/12]+[36/5]

29(5)/12(5)+36(12)/5(12)

(145+432)/60

577/60

C) [-2/5+4] - [-1/3+1]=

[(-2+20)/5]-[(-1+3)/3]

[18/5]-[2/3]

18(3)/5(3)-2(5)/3(5)

(54-10)15

44/15

D) [3/4+5/3] - [5/3-3/2]=

[3(3)/4(3)+5(4)/3(4)]-[5(2)/3(2)-3(3)/2(3)]

[(9+20)/12]-[(10-9)/6]

29/12-1/6

29/12-1(2)/6(2)

(29-2)/12

27/12