Can somone explain to me how they get the demoninator and numerator for this problem?

Can you break it sown for me?

I dont see how I there's a 27 in this problem.

3-(4/9) / 4+(2/3)

Numerator:

3 - 4/9

= 27/9 - 4/9

= 23/9

Denominator:

4 + 2/3

12/3 + 2/3

14/3

Entire Fraction Together:

23/9 divided by 14/3

23/9 times 3/14

23*3 / 9*4

69 / 36

23 / 12

Answer: 23/12 which is also 1 11/12