5 1/4 - 2 5/7 is not possible right now, but that’s okay! We can make it happen!
Answer: 2 15/28
Step one: Put aside the whole numbers for now. We will be dealing with the fractions. We have to make a common denominator! The smallest common denominator of 4 and 7 is 28. So we need to multiply 1/4 by 7 and 5/7 by 4, which would be 7/28 and 20/28.
Step two: now we can subtract them. Finally!
4 35/28 - 2 20/28 will be 2 and 15/28!!
