fraction( _N, _D ) as a decimal.
fraction( _N, _D ) reduces to
fraction( N, D ).
Denominators of 10 or 100 are easy cases: The decimal form is just the numerator with the decimal place moved left by the number of 0s in the denominator.
For this question, this means D === 10 ? "1 place" : "2 places".
fractionSmall( N, D ) into a decimal, perform long division, dividing
N (if you need help with this, try practicing some Division exercises or watching some related videos).
N \div D = DEC