Respuesta:
a._(+3/5)-(+10/5)+(+9/5)-(+3/5)=1
b._(6/7)-(11/14)+(-9/14))-(-4/7)=0
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Verified answer
Respuesta:
a._(+3/5)-(+10/5)+(+9/5)-(+3/5)=1
b._(6/7)-(11/14)+(-9/14))-(-4/7)=0