{"result":{"text":"begin mathsize 14px style fraction numerator a subscript 1 over denominator a subscript 2 plus a subscript 3 plus horizontal ellipsis plus a subscript n end fraction comma fraction numerator a subscript 2 over denominator a subscript 1 plus a subscript 3 plus horizontal ellipsis plus a subscript n end fraction comma horizontal ellipsis fraction numerator a subscript n over denominator a subscript 1 plus a subscript 2 plus horizontal ellipsis plus a subscript n minus 1 end subscript end fraction end style"},"status":"ok"}