If a new operation is defined as m · n = M-N / m · n, find the value of 3 * (- 2) * 5

If a new operation is defined as m · n = M-N / m · n, find the value of 3 * (- 2) * 5


3*(—2)=(3+2)/-6=-5/6
-5/6*5=(-5/6-5)/(-25/6)=7/5
3*(—2)*5=7/5