Respuesta :

pegah
if you want to find the simplest form you should divide both numbers by 3:
12÷3/15÷3 = 4/5 and thats the simplest form :)))
i hope this is helpful
have a nice day 
Simplest form of 12/15 is 4/5

To simplify the fraction, you need to divide both numerator (12) and denominator (15) by a number that goes into both numbers which is 3. You then end up with your fraction