1/3 divided by 7/9 = 3/7.
For fractions, multiplying by the reciprocal is the same as dividing (because it is the reverse operation). The reciprocal of 7/9 is 9/7. Set up an equation and multiply straight across:
(1/3) • (9/7) = 9/21, which can simplify by dividing the numerator and denominator by a common factor of 3. 9 div 3 = 3 and 21 div. 3 = 7.
So the answer is = 3/7.