ChrisFA

**Extended response questions:**  1. How can you tell if two fractions are equivalent?You can tell by if they have the same sum.

2. When is a fraction in simplest form?It is in simplest form when you can't take the numerators number down any lower.

3. Why do you need to find a common denominator before adding or subtracting fractions? So that adding or subtracting can be easier.

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?I put this answer because if you look at 1/2 to1/4 the 2 becomes a 4 after the 1 but then look at 1/4 to 1/8 the 4 becomes a 8 after the 1 then you do the same thing for the second pair of numbers.

 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. 1/2 of the school grades 3-5 can use eather machanical pencils or regular ones and the other 1/2 haves to use regular.