Respuesta :

 1/4 - (3/7) • (7/8)   
 1/4 - 3/8
= 2/8 - 3/8
= -1/8
answer
B.-1/8 
= 1/4 - 21/56
=  14/56 - 21/56
= -7/56

= -1/8  Answer

Its B
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