Question

SUPRIME Y RESUELVE
ayuda por favor doy coronita ​

Answer 1

Respuesta:

D_

(3/2 - 1/4 + 2) - (3/4 - 2/5 + 1) =

(6/4 - 1/4 + 8/4) - (15/20 - 8/20 + 20/20)

(13/4)-(27/20)

(65/20)-(27/20)

=38/20

=19/10

F_

(2/5 + 1/3) - [1 - (3/4 - 1/2) + 2/3 - 3/20] =

(6/15 + 5/15) - [1 - (3/4 - 2/4) + 2/3 - 3/20] =

(11/15) - [1 - (1/4) + 2/3 - 3/20] =

(11/15) - [60/60 - (15/60) + 40/60 - 9/60] =

(11/15) - [76/60] =

(11/15) - [18/15] =

=(-7/15)

H_

4/5 - {(-1) - [2/5 - (1/6 + 3)] - 2/5} - 1/2 =

4/5 - {(-1) - [2/5 - (1/6 + 18/6)] - 2/5} - 1/2 =

4/5 - {(-1) - [2/5 - (19/6)] - 2/5} - 1/2 =

4/5 - {(-1) - [12/30 - (95/30)] - 2/5} - 1/2 =

4/5 - {(-1) - (83/30)- 2/5} - 1/2 =

4/5 - {(-30/30) - 83/30 - 12/30} - 1/2 =

4/5 - {-127/30} - 1/2 =

24/30 -(-127/30) - 15/30 =

24/30 + 127/30 - 15/30 =

=136/30

=68 / 15