12 boys. 7 * 3 is 21. 21 girls. 4*3 is 12. 12 boys 21 girls
40
There isnt a way the LCD can go lower, because 5 only counts by 5's and 5 and 8 meet at 40.
As a fraction: 287/100
As a mixed number: 2 87/100
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Remember, "%" means exactly the same thing as "/100".