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.
4/7.
Add a positive number - fraction or integer - to the given fraction.
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.
You add an positive number to .07. The answer is greater than .07