Ответы и объяснения

2014-03-27T19:48:46+04:00
1. 3,25 + 2 1/6 = 3 1/4 + 2 1/6 = 3 3/12 + 2 2/12 = 5 5/12
2. 5 7/12 : 2,6 = 65/12 * 10/26 = 25/12 = 2 1/12
3. 2/3 * 2,25 = 2/3 * 225/100 = 3/2 = 1,5
4. 5 1/6 + 2 1/12 = 5 2/12 + 2 1/12 = 7 3,/12 = 7 1/4
5. 7 1/4 - 1 1/2 = 7 1/4 - 1 /24 = 6 5/4 - 1 2/4 = 5 3/4 = 5,75