"\n5\n1\n2\n⋅\n7\n11\n+\n3\n4\n⋅\n6\n1\n4\n−\n3\n1\n8\n:\n5\n8\n1\n1\n3\n:\n1\n6\n−\n5\n1\n3\n⋅\n1\n2\n+\n2\n2\n3\n=\n1 \n3\n1\n​\n : \n6\n1\n​\n −5 \n3\n1\n​\n ⋅ \n2\n1\n​\n +2 \n3\n2\n​\n \n5 \n2\n1\n​\n ⋅ \n11\n7\n​\n + \n4\n3\n​\n ⋅6 \n4\n1\n​\n −3 \n8\n1\n​\n : \n8\n5\n​\n \n​\n "