7又(1/3)×(-1/12)÷(1/9)÷(3/14)
=(22/3)×(-1/12)×9÷(3/14)
=(-11/18)×9÷(3/14)
=(-11/2)÷(3/14)
=(-11/2)×(14/3)
=-77/6
=-12又(5/6)