0.72 (repeating) = 72/99 which reduces to 24/33
little tip :
if there is 1 repeating number. put it over 9: 0.4444 = 4/9
if there is 2 repeating numbers, put it over 99: 0.8787 = 87/99
if there is 3 repeating numbers, put it over 999: 0.789789 = 789/999