5/7
Any fraction greater than 3/7.
Proper fractions are less than 1. Improper fractions are greater than 1. For a proper fraction to become an improper fraction, you would have to add a quantity that would make it greater than 1.
Add it to itself.
Add a positive number - fraction or integer - to the given fraction.
Well, honey, if you add any fraction greater than 3/7 to 4/7, you'll end up with a sum greater than 1. So, technically, any fraction larger than 3/7 will do the trick. Just don't go adding anything smaller unless you want a sum less than 1.
Well, sweetie, 1.2 is indeed greater than 1.12. It's as simple as this: the more decimal places you add, the bigger the number gets. So in this case, 1.2 takes the cake over 1.12.
4 over 7
500/7 would be a very safe bet.
obvious answer:9 out of 8 or if you can 1 out of 1
4/7 I guess. 4/7 + 4/7 = 8/7 = 1 1/7. 1 1/7 > 1.
Multiply them by a number less than 1. Divide them by a number greater than 1. Add a negative number. Subtract a positive number. Any of the above will do. One could also reduce the font when printing the fraction.
By definition, a mixed fraction is one whose absolute value is greater than 1 whereas, again by definition, a proper fraction is one whose absolute value is less than 1. It therefore follows from the definitions that one of these cannot be turned into the other.