x=(9 16/51)-(4 11/17)
x=(9*51+16)/51 - (64+11)/17
51/17=3
(9*51+16-3*75)/51=x
(459+16-225)/51=x
x=250/51
x=4 46/51
x=(9 16/51)-(4 11/17)
x=(9*51+16)/51 - (64+11)/17
51/17=3
(9*51+16-3*75)/51=x
(459+16-225)/51=x
x=250/51
x=4 46/51