(-4分之3)×(-6分之1)÷(-4分之9)
= -3/4×(-1/6)×(-4/9)
= -3/4×1/6×4/9
= -1/18
=负18分之1
(-5分之3)×(-2又2分之1)÷(-1又4分之1)÷3
= -3/5×(-5/2)×(-4/5)×1/3
= -3/5×5/2×4/5×1/3
= -2/5
=负5分之2
(-4分之3)×(-6分之1)÷(-4分之9)
= - 3/4 × 1/6 × 4/9
= - 1/18
(-5分之3)×(-2又2分之1)÷(-1又4分之1)÷3
= - 3/5 × 5/2 ×4/5 ×1/3
= - 2/5