200
Alyssa had $5.00 in quarters. On Saturday she spent 1/4 of her quarters. On Sunday she spent 1/5 of her remaining quarters. What fraction of her quarters were left?
3/5
She began with 20 quarters (there are 4 quarters in $1, and therefore 20 quarters in $5). 1/4 of 20 is 5, meaning that she spent 5 of her quarters, leaving her with 15. 1/5 of 15 is 3, meaning she spent 3 of her remaining quarters, leaving her with 12.
Our final fraction is 12/20, or, simplified, 3/5.