Danielle and her brother went to the town carnival. Together, they won 15 prizes. Danielle won 9 of them. What fraction did her brother win? If there had been only 10 prizes won, how many would her brother have won if the fractions were equivalent?
Her brother won 6 out of 15. 6/15 = 0.4
Multiply this by 100: 0.4*100 = 40%
If there were only 10 prizes, and her brother won 40% of them, then he won 4 prizes. 10*0.4 = 4
Hope that helps!