Three-quarters of 20 equals what?
This model shows 20 blocks. They’ve been arranged into five rows of four. We have to find three-quarters of 20. To find a quarter of a number, we divide it by four or divide it into four equal parts. Each of these equal parts is a quarter. How many blocks are there in one-quarter? One, two, three, four, five. One-quarter of 20 is five. Two quarters of 20 is 10. Three-quarters is 15. Three-quarters of 20 equals 15.