Answer:
Step-by-step explanation:
I don't know how to explain this any clearer than the question itself. Suppose you have 6/8 - 5/8. The denominators are the same so there's no need to go looking for a common denominator. The numerators differ by 1 and the denominators stay the same. The answer is 1/8
For your question 9/37 - 8/37 you have the same set of rules. The answer is 1/37
