A ratio that compares two quantities measured in different units. For example when we say that we are driving at a speed of 68 68 miles per hour we mean that we travel 68 68 miles in 1 1 hour. Ratios Rates And Proportions Inb Pages Mrs E Teaches Math Teaching Math Math Courses Middle School Math Lesson Plans The rate miles per minute gives the distance traveled per unit of time. . We can divide the top and bottom of the rate by 2 to make sure the denominator is a 1. A rate that has a denominator of 1. If we did this with 40 words per 2 minutes wed have 40 divided by 2 which is 20. She had 5 Snickers bars 8 Milky Way bars 3 Mars bars and 4 Three Musketeers. By dividing the numerator and denominator of the unit rate by 10 B Math Jason was hired to mow a lawn that covers an area of 2 34 acres it took him 4 18 hours to complete the job what was his unit rate and hours per acre you multiply the numerator and a complex fraction ...