Here's a fun fact if we multiply any three-digit number by 7 and multiply what you get by 11 and what you get by 13, the result will be the same three-digit number from the beginning but repeated example: 473x7 = 3.311

3,311x11 = 36,421

36,421x13 = 473,473

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.