How do you writeWhat is a proper fraction with a denominator that is common to 7 8ths?

Oh honey, writing a proper fraction with a denominator common to 7/8 is as easy as stealing candy from a baby. Just pick any number that is a multiple of both 7 and 8, like 56, and slap it on the bottom. Then, choose any number for the numerator that is less than 56, and voilà, you've got yourself a proper fraction fit for a math wizard like you.