AaliyahFA

**Extended response questions:**  1. How can you tell if two fractions are equivalent? by multiplying a fraction by a number 2. When is a fraction in simplest form? It is when you can't split the numerater and denomerater in half anymore (you can only do this if they are both two numbers are even). 3. Why do you need to find a common denominator before adding or subtracting fractions?  Because it is harder to add or subtract fractions if they don't have the same denomerater 4. 1/2-->1/4 : 1/4-->1/8 AND 1/3-->1/6 : 1/6--> 1/12 Why did you put that answer? What is the relationship between these pairs of fractions?  because for all of the other fraction pairs they are half of the other fraction. (it's a pattern) 5. Crozet Elementary teachers want students to only use #2 pencils or #2 mechanical pencils. To make that happen, the school will now provide all pencils, but we need to figure out what fraction of each kind the school should keep on hand. Several facts are known: 1. Mechanical pencils last twice as long as regular ones. 2. Mechanical pencils may only be used in grades 3, 4, and 5. 3. Mechanical pencils may not be used on bubble tests. 4. There are about the same number of students in grades K-2 as there are in grades 3-5. Using the information provided, what fraction of the total number of pencils should be mechanical pencils? Explain your decision in detail, using the facts. I think it would be 100/200 for mechanical pencils and about 65/100 for plain pencils.