+245 when you are doing the same operation across an expression like the one above you can work from left to right. (except if there are parentheses do them first)
so then
6/-7 is -6/7 -->
-6/7 / 3 is -6/7 * 1/3 which is -6/21 -->
-6/21 / 11 is -6/21 * 1/11 which is -6/231 or -2/77 when simplified.
