Answer:
Step-by-step explanation:
Least common denominator is 10
there are 10/10 portions in the whole circle
1/2 = 5/10
2/5 = 4/10
10/10 - 5/10 - 4/10 = 1/10
It's 10!/3! so its 604, 800.
10, 11, 12, 9.5, 10.5, 11.5, 12.5