1 2/3/(6/17-1/3)-3*4/7
решите плиз

12/3 = 4 6/17 -1/3= 18/51 - 17/51= 1/514*1/51=4/513*4/7= 1 целая 5/74/51 - 1 целая 5/7 = 1 целая 27/357 = 1 целая 9/119