A pair of fractions that use a least common denominator and that are equivalent to 9/10 and 5/6 are 27/30 (equivalent to 9/10) and 25/30 (equivalent to 5/6). Hope it helps :)
Your domain would include only positive integers, or zero. The value of the buns cannot be negative; in other words, you cannot have a negative number of buns. The same principle applies to boxes. However, you can have zero buns or zero boxes. Hope this helps.
