(1)(-6)×(-4)×2×(-3)
=-(6×4×2×3)
=-144
(2)(-12分之5)×(-15分之4)×2×(-3)
=-(12分之5×15分之4×2×3)
=-3分之2
(1)(-6)×(-4)×2×(-3)
=24×2×(-3)
=48×(-3)
=-144
(2)(-12分之5)×(-15分之4)×2×(-3)
=1/9×2×(-3)
=2/9×(-3)
=-2/3
(1)(-6)×(-4)×2×(-3)
=-6×4×2×3
=-24×6
=-144
(2)(-12分之5)×(-15分之4)×2×(-3)
=-5/12×4/15×2×3
=-1×2/3
=-2/3