Question

4分之三减三分之13+六分之5-12分之7？

Answer 1

3/4-13/3+5/6-7/12
=(9-52+10-7)/12
=-40/12
=-10/3
3/4-3/13+5/6-7/12
=3/4+5/6-7/12-/13
=(9+10-7)/12-/13
=1-3/13
=10/13