1 4/9 - 5/9 =

First, convert the mixed number to an improper fraction:

\( 1 \frac{4}{9} = \frac{(1 \times 9) + 4}{9} = \frac{9 + 4}{9} = \frac{13}{9} \)

Now, subtract the fractions:

\( \frac{13}{9} - \frac{5}{9} = \frac{13 - 5}{9} = \frac{8}{9} \)

Ответ: 8/9