Step: Express the ratio in simplest form:
Since 1 day =24 hours,
Therefore,
3 hours :1 day =3 hrs24 hrs
Above ratio or fraction can be converted to its simplest form by dividing numerator and denominator by their HCF equal to 3, we get,
324=3÷324÷3=18
Hence, the simplest form of the given ratio is 1 :8.