найди значение выражений (4 5/13+2 8/13) - (1 12/13 + 3 7/13) и 4 5/13 + (2 8/13 - 1 12/13) + 3 7/13
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найди значение выражений (4 5/13+2 8/13) - (1 12/13 + 3 7/13) и 4 5/13 + (2 8/13 - 1 12/13) + 3 7/13
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(4 5/13+2 8/13) - (1 12/13 + 3 7/13)=1 7/13
1.4 5/13+2 8/13=7
2.1 12/13+3 7/13= 4 19/13=5 6/13
3.7-5 6/13=6 13/13-5 6/13=1 7/13
Ответ: 1 7/13
4 5/13 + (2 8/13 - 1 12/13) + 3 7/13= 8 8/13
1)2 8/13 - 1 12/13 =9\13
2)4 5/13+9/13=4 14/13 =5 1/13
3) 5 1/13+ 3 7/13= 8 8/13
Ответ: 8 8/13