R.I. Gen. Laws § 47-15-11: Largest unit statement of quantity.

If the quantity of the commodity in the container equals or exceeds the smallest unit of weight or measure which is specified in § 47-15-10, the statement of quantity shall be expressed in the number of the largest of the units contained therein. Where the number is a whole number and a fraction, there may be substituted for the fraction its equivalent in smaller units. The stated number of any unit which is smaller than the largest unit specified in § 47-15-10, shall not equal or exceed the number of those smaller units in the next larger unit so specified.