Answer :
0.00625=625/100000
[tex] \frac{625}{100000} = \frac{25}{4000} = \frac{1}{160} [/tex]
[tex] \frac{625}{100000} = \frac{25}{4000} = \frac{1}{160} [/tex]
answer for conversion of -0.00625 into rational number is 1/160