Question

porfa me ayudan a resolverlo

Answer 1

( - 4 / 2 ) + ( 2 / 4 ) + ( - 3 / 8 ) =

( - 2 ) + ( 1 / 2 ) - ( 3 / 8 ) =

Recuerda que:
a/b ± c/d = ( a*d ± b*c ) / b*d

[ ( -2*2 + 1 ) / 2 ] - 3/8 =

[ ( - 4 + 1 ) / 2 ] - 3/8 =

- 3/2 - 3/8 =

[ (-3)(8) - 3*2 ] / 8*2 =

( - 24 - 6 ) / 16 = - 30/16 = - 15/8

Espero haberte ayudado, saludos!