Adam has 20 sweets he eats a quarter of them how many does he have left? A quarter means 1/4. There's 2 ways you can approach this problem. Approach #1: Adam eats a quarter, or 1/4 of the sweets. So he eats: 20 * 1/4 = 5 Remaining sweets = Total Apples - Eaten Apples Remaining sweets = 0 - 5 Remaining sweets= 15 Approach #2: If Adam eats 1/4 of the sweets, this means he has: 1 - 1/4 sweets remaining. Since 1 equals 4/4, we have: 4/4 - 1/4 = 3/4 Therefore, he has 20 * 3/4 sweets remaining. This is 60/4, or 15