4\7•8\9

To multiply the fractions 4/7 and 8/9, we simply multiply the numerators together to get the new numerator and multiply the denominators together to get the new denominator.

(4/7) * (8/9) = (48) / (79) = 32 / 63

Therefore, the result of multiplying 4/7 by 8/9 is 32/63.