27*960/40-45360/70=подскажите

Question

27*960/40-45360/70=подскажите

Answer 1

27*960/40-45360/70=0

Answer 2

( 27*960/40)- (45360/70)

1)27*960=25920

2)25920/40=648

45360/70=648

648-648=0