HeidiFA

**Extended response questions:**  1. How can you tell if two fractions are equivalent? Because the numerator and the denamanator are counting by whatever the fraction is.

2. When is a fraction in simplest form? When you divide the numerator by a number.

3. Why do you need to find a common denominator before adding or subtracting fractions?  Because if the denamantors are'nt the same then its imossible to add or subtract.

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 the pattern is 2,4 on the left and 3,6 on the right. The ralationship between the fractions are that the green writing on the left is going by 8th's.  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 there should be150 mecanicl pencils and