There are 3 ways(or more) of solving this.. The first way: 1) Since 20 is a multiple of 100, you multiply The numerator and denominator by 5: 6/20*5/5= 30/100 2) You should know 30/100 is 0.30 or 0.3 The second way: 1) Simplify 6/20 and you should get 3/10: 6/20 divided by 2/2= 3/10 2) You should know that 3/10 is 0.3 The third way: 1) Divide 6 and 20 and you should get 0.3 You could use whatever way you want or do whatever helps you best. Hope this helps :)