If both fractions are in lowest terms, then how do you find which fraction is greater than and less than?

If you make them equivalent by making them have the same denominator, then    
the the fraction with the largest numerator will be greater than the other e.g. 3/8 and 4/9= 27/72 and 28/72

Make their denominators equal, then just look at which fraction has the bigger numerator

Dis the solution here