1. Sum and differences of two fractions Created by: Ly Dang

2. Vocabulary 1numerator 2denominator 2011 Creative Curriculum for Children [CCC] 3. 2011 Creative Curriculum for Children [CCC] 4. Adding fractions w/ same denominators 12 3 44 4When adding fractions with the samedenominators, simply add the numeratorsand place the sum over the denominator.REMINDER: Do not add the denominators. 2011 Creative Curriculum for Children [CCC] 5. Adding fractions w/ different denominators 1 2 7 8 4 72828 15 28 Step 1: Find the least common denominator by multiplying the current denominators. (This becomes the new denominator) 4 X 7 = 28 Step 2: Convert the fractions to fractions with the same denominators. 1/4 = 7/ 282/7 = 8/28 Step 3: Add the fractions as shown in the slide before. 2011 Creative Curriculum for Children [CCC] 6. Subtracting fractions w/ same denominators 52 3 44 4When subtracting fractions with the samedenominators, simply subtract the numeratorsand place the difference over the denominator.REMINDER: Do not subtract the denominators. 2011 Creative Curriculum for Children [CCC] 7. Subtracting fractions w/ different denominators12 344 4 When adding fractions with the same denominators, Simply add the numerators and place the sum over the denominator. REMINDER: Do not add the denominators.2011 Creative Curriculum for Children [CCC]