Вычислите: 7/12 − 5/12; 1 − 2/5; 1 − 2/45; 12 − 1/7; 21 − 4/13; 12 − 41/70; 36 − 7/53; 8 3/4 − 4; 7 3/5 − 3/5; 8 4/6 − 5/6; 9 4/9 − 1/3; 8 3/16 − 1/8; 10 5/8 − 1/4; 11 7/12 − 1/4; 7 41/48 − 5/6.

1. \(\frac{7}{12}-\frac{5}{12}=\frac{2}{12}=\frac{1}{6}\).
2. \(1-\frac25=\frac35\).
3. \(1-\frac{2}{45}=\frac{43}{45}\).
4. \(12-\frac17=11\frac67\).
5. \(21-\frac4{13}=20\frac9{13}\).
6. \(12-\frac{41}{70}=11\frac{29}{70}\).
7. \(36-\frac7{53}=35\frac{46}{53}\).
8. \(8\frac34-4=4\frac34\).
9. \(7\frac35-\frac35=7\).
10. \(8\frac46-\frac56=7\frac56\).
11. \(9\frac49-\frac13=9\frac19\).
12. \(8\frac3{16}-\frac18=8\frac1{16}\).
13. \(10\frac58-\frac14=10\frac38\).
14. \(11\frac7{12}-\frac14=11\frac13\).
15. \(7\frac{41}{48}-\frac56=6\frac{49}{48}=7\frac1{48}\).

Ответ: \(\frac16;\ \frac35;\ \frac{43}{45};\ 11\frac67;\ 20\frac9{13};\ 11\frac{29}{70};\ 35\frac{46}{53};\ 4\frac34;\ 7;\ 7\frac56;\ 9\frac19;\ 8\frac1{16};\ 10\frac38;\ 11\frac13;\ 7\frac1{48}\).