Ответ:
- 17,3 + 6,65 = 23,95.
- 14,8 − 2,57 = 12,23.
- 4,5 · 0,16 = 0,72.
- 2,88 : 3,2 = 0,9.
- 3/4 + 5/6 = 9/12 + 10/12 = 19/12 = 1 7/12.
- 7 3/10 − 5 11/15 = 73/10 − 86/15 = 219/30 − 172/30 = 47/30 = 1 17/30.
- 7/9 · 3/14 = 21/126 = 1/6.
- 3 1/5 : 5/12 = 16/5 · 12/5 = 192/25 = 7,68.
