Ответ:

  1. 3 1/16 − 1/8 = 3 + 1/16 − 2/16 = 2 15/16.

  2. 7 9/20 − 5 17/80 = 2 + 36/80 − 17/80 = 2 19/80.

  3. 4 2/7 − 1 4/9 = 3 + 2/7 − 4/9 = 3 + 18/63 − 28/63 = 2 53/63.

  4. 8 5/36 − 1 43/108 = 7 + 15/108 − 43/108 = 6 + 80/108 = 6 20/27.

  5. 9 7/9 − 4 5/6 = 5 + 14/18 − 15/18 = 4 17/18.

  6. 6 7/32 − 2 11/48 = 4 + 21/96 − 22/96 = 3 95/96.