**Ratio**

**A ratio is a comparison of two numbers.**

**How much sugar do you put in your favorite cookie recipe? How much flour?**

**In mine there are 2 cups of sugar and 5 cups flour, so the ratio of sugar to flour is 2 to 5.**

**I can write this 2 to 5 or 2:5 **

**The ratio of flour to sugar is 5 to 2 or 5:2 or [Image:12102012_124238_1.png]. **

**The last example looks like a fraction, but don’t change a ratio to a mixed number (2 ½).**

**Remember a ratio is the comparison of two numbers so keep them in fraction form.**

**If you are comfortable, try these on for size:**

**1. What is the ratio of one foot to inches? **

**2. What is the ratio of inches to one foot?**

**3. What is the ratio of men to women in your class or at work?**

**4. Simplify the ratio of 12:15**

**5. A class of 20 students has 12 women. (Reduce)**

**a. What is the ratio of the number of men to the total number of students?**

**b. What is the ratio of the number of men to the number of women?**

**c. What is the ratio of the number of women to the number of men?**

**6. In a bucket there are 105 what-cha-ma-call-its and 45 doohickeys.**

**a. What is the ratio of the number of what-cha-ma-call-its to the total number of things in the bucket?**

**b. What is the ratio of the number of doohickeys to the total number of things in the bucket?**

**c. What is the ratio of the number of doohickeys to the number of what-cha-ma-call-its?**

**7. From a total yearly budget of $24,000,000, Special City spends $4,000,000 on education. What is the ratio of the amount spent on education to the amount not spent on education?**

**8. A test of 50 questions included 15 ratio problems and 5 percentage problems. What is the ratio of the total number of fraction and decimal problems to the number of problems on the test?**