Question

12分之5减（12分之1减2分之1）

Answer 1

12分之5减（12分之1减2分之1）

=5/12-(1/12-1/2)

=5/12-1/12+1/2

=5/12-1/12+6/12

=(5-1+6)/12

=10/12

=5/6

六分之五