Answer :
We have a decimal system.
After the decimal point starts the negative powers of ten in those columns...
. 10^-1, 10^-2, 10^-3, 10^-4, 10^-5
1/10s, 1/100s, 1/1000s, 1/10,000s, 1/100,000s
so .00463 is equal to
463/100000
After the decimal point starts the negative powers of ten in those columns...
. 10^-1, 10^-2, 10^-3, 10^-4, 10^-5
1/10s, 1/100s, 1/1000s, 1/10,000s, 1/100,000s
so .00463 is equal to
463/100000