6. Найдите разность дробей: 1) 8/9 − 1/3; 2) 7/12 − 1/6; 3) 17/25 − 2/5; 4) 15/32 − 3/8; 5) 19/20 − 9/10; 6) 15/28 − 3/14.

1. \(\frac89-\frac39=\frac59\).
2. \(\frac7{12}-\frac2{12}=\frac5{12}\).
3. \(\frac{17}{25}-\frac{10}{25}=\frac7{25}\).
4. \(\frac{15}{32}-\frac{12}{32}=\frac3{32}\).
5. \(\frac{19}{20}-\frac{18}{20}=\frac1{20}\).
6. \(\frac{15}{28}-\frac6{28}=\frac9{28}\).

Ответ: 1) \(\frac59\); 2) \(\frac5{12}\); 3) \(\frac7{25}\); 4) \(\frac3{32}\); 5) \(\frac1{20}\); 6) \(\frac9{28}\).