$22\frac{1}{6}+7\frac{1}{6}-3\frac{1}{6}=$

$\frac{1}{\frac{2}{1+\frac23}}=$

$5\frac15+4\frac12+4\frac13=$

$1/2+1/4+6\frac12=$

$\frac{16}{23}\times\frac{47}{288}\times\frac{92}{141}=$

$1\frac35+1\frac89+2\frac45=$

A fraction becomes 1/2 if 2 is added to the numerator and 5 is added to the denominator. It also becomes 1/3 if 2 is subtracted from both the numerator and denominator. Then the fraction is