what is £300.00 - 2/7
Seventh grade is not a school subject.
That depends upon whether you mean
(£300.00 - 2.00)/7 , which is £42.57
or
£300.00 - £ 2/7
which is £297.72
(£300.00 - 2.00)/7 , which is £42.57
or
£300.00 - £ 2/7
which is £297.72