42 degrees, 29 minutes, and 6 seconds.
Explanation:
1. Understand complementary angles add up to 90° 0' 0"
2. Subtract the quantities separately.
2.1. Take a minute and convert it to seconds, so you can subtract.
![</p><p>60 - 54 = 6</p><p>](https://img.qammunity.org/2021/formulas/mathematics/middle-school/5pj6ta3pw8mchfp3c1l73xhgimesg2rbw7.png)
So now you have some angle with 6".
2.2. Then, take a degree, and convert it to minutes, and subtract the previously taken minute, once more, so you can subtract.
![</p><p>59-30=29</p><p>](https://img.qammunity.org/2021/formulas/mathematics/middle-school/lfxklppgs533ix2sktry2s36i7pyxdm6sr.png)
Now you have some angle with 29' 6".
2.3. Finally, subtract the degrees.
![</p><p>89-47=42</p><p>](https://img.qammunity.org/2021/formulas/mathematics/middle-school/1ha020tzgxmjh3iijbc86ge6ftm6iznkp0.png)
Your angle is 42°29'6".