Question

$frac{frac{1}{3} }{1 } - frac{1}{frac{1}{3}} * frac{1}{frac{1}{3}+1}$

Answer 1

.................................

Answer 2

Там написано не (1/3), а (1/1/3)

Answer 3

А, сорян

Answer 4

1/3-3*(3/4)=4/12-27/12=-23/12