\[ 3 \frac{9}{26} = \frac{3 \times 26 + 9}{26} = \frac{78 + 9}{26} = \frac{87}{26} \]
\[ 1 \frac{3}{13} = \frac{1 \times 13 + 3}{13} = \frac{13 + 3}{13} = \frac{16}{13} \]
\[ \frac{87}{26} - \frac{16}{13} \times \frac{13}{44} \]
Сократим 13 в числителе и знаменателе:
\[ \frac{16}{13} \times \frac{13}{44} = \frac{16}{44} \]
Сократим дробь на 4:
\[ \frac{16}{44} = \frac{4}{11} \]
\[ \frac{87}{26} - \frac{4}{11} \]
\[ \frac{87}{26} = \frac{87 \times 11}{26 \times 11} = \frac{957}{286} \]
\[ \frac{4}{11} = \frac{4 \times 26}{11 \times 26} = \frac{104}{286} \]
\[ \frac{957}{286} - \frac{104}{286} = \frac{957 - 104}{286} = \frac{853}{286} \]
853 = 2 * 286 + 281
\[ \frac{853}{286} = 2 \frac{281}{286} \]
Ответ: $$2 \frac{281}{286}$$