1) 3,75 + 2 1/2 = 3,75 + 2,5 = 6,25
2) 2 1/3 - 1,875 = 7/3 - 1 7/8 = 7/3 - 15/8 = 56/24-45/24 = 11/24
3) 6,25 : 11/24 = 625/100:11/24 = 150/11 - первая дробь
4) 2,75 - 1 1/2 = 2,75 - 1,5 = 1,25
5) 8 1/8 + 1,5 = 65/8 + 1 1/2 = 65/8+3/2 = 65/8 + 12/8 = 77/8
6)1,25 : 77/8 = 125/100 : 77/8 = 10/77 - вторая дробь
7) 150/11 - 10/77 = 1050/77 - 10/77 = 1040/77 - значение в скобках
8) 1040/77 : 10/11 = 104/7 = 14 6/7
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