Решите примеры: 17/15х(7/34-2 целых2/17)-(-1/2)³ Решите:(2целых11/12-4целых5/18)-(-1целая2/7)-(-3/4)²
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17/15*(7/34-2 2/17)-( -1/2)²= - 5 1/81) 7/34-2 2/17=7/34-2 4/34= - 1 31/34
2) 17/15*( - 1 31/34)= - 17/15*65/34= - 10/2= - 5
3) ( - 1/2)²=1/8
4) -5-1/8= - 5 1/8
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(2 11/12-4 5/18)-( - 1 2/7)-( - 3/4)²= 1 3/16
1) 2 11/12-4 5/18=2 33/36-4 10/36= - 1 13/36
2) - 1 13/36 * ( - 1 2/7)= 49/36*9/7=7/4=1 3/4
3) ( -3/4)²=9/16
4) 1 3/4-9/16=1 12/16-9/16=1 3/16