Answer:
The answer of CGF is 3.................
10 1/2-4 1/4= 6 1/4. 6 1/4-3 2/3= 2 7/12. They used 2 7/12 ft or 2ft 7in of wood to fix the stairs.
I only know this because I remember the common fractions, and 1/3 is .3333 repeating.
6 4/5 = 6.8
4 1/2 = 4.5
6.8-4.5= 2.3
Answer: 2 3/10 more pounds of treasure
So if the main question is 9q x 3 it would equal 27q