ayúdenme gente por favor

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

-(-2/6)-(-3/4)

-(-1/5)+(-2/6)

-(-3/4)+(+2/7)

+(+3/8)+(+2/7)

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

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

-(+3/5)-(-2/3)

+(-2/5)-(-3/4)​​