[4]5.1=-4.4.4.4.1

Question

-- - - -------=
5 4 5.5.5.5.5

simplify by multiplying. what is the final answere.

Answer 1

If you mean
5/5 * 1/4 + -4/5 *4/5 * 4/5 * 4/5 * 1/5
then that would be
2101/12500