1. 7/9÷5/6
do reciprocal and now you are multiplying
7/9×6/5
7×6=42
9×5=45
now your fraction is 42/45
now divide 42 and 45 by 3
42÷3=14
45÷3=15
your simplified fraction is 14/15
2. 4/1÷2/3
do reciprocal again like the first one
4/1×3/2
4×3=12
1×2=2
your new fraction is 12/2, now divide 12 and 2 by 2
12÷2=6
2÷2=1
your simplified answer is 6