Can you explain this step by step on how to do the problem?

Question

Kelsey wants to compare the number of blouses that she owns of various colors. She owns a total of 30 blouses. 20% of them are blue. Five of them are red. 3/10 of them are white. The rest are either pink, purple, or green. What simplified fraction would correctly represent the portion that are either pink, purple, or green?

Answer 1

.2(30 = 6 blue

5 red

.3(30) = 9 white

6+5+9 = 20

20/30 = 2/3 are red, white or blue

10/30 = 1-2/3 = 1/3 are pink, purple or green