(-3)x5/6x(1又4/5)x(-0.25)

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(-3)x5/6x(1又4/5)x(-0.25)(-3)x5/6x(1又4/5)x(-0.25)(-3)x5/6x(1又4/5)x(-0.25)原式=3×5/6×9/5×1/4=9/8

(-3)x5/6x(1又4/5)x(-0.25)
(-3)x5/6x(1又4/5)x(-0.25)

(-3)x5/6x(1又4/5)x(-0.25)
原式=3×5/6×9/5×1/4
=9/8