Answer:
2 and 2/9
Explanation:
First, turn 1 7/9 into an improper fraction.
Multiply 9 by 1 and add it to 7/
16/9 ÷ 4/5.
Now here is a shortcut, flip 4/5 into 5/4 and turn the ÷ into × to balance the equation.
You get 16/9 × 5/4
16 × 5 = 80
9 × 4 = 36
80/36 is 2 and 2/9