8/9 = 1/3f
step 1: change fractions into fractions with a common denominator. in this case, 1/3 would change to 3/9 and 8/9 would stay the same.
step 2: isolate the variable, f. multiply both sides of the equation by 3/9
in this case, 8/9*3/9 is 3/27, meaning f=8/27
