What is 1 3 plus 2 17?

1/3 + 2/17

need common denominator to add fractions and with this oddball just multiply 3 * 17 = 51 and use form of one to get fractions into order

17*1/17*3 + 3*2/3*17

17/51 + 6/51

= 23/51

=======simplest form