ALGEBRA READINESS LESSON 5-1 Warm Up

ALGEBRA READINESS LESSON 4-4 Warm Up

ALGEBRA READINESS “Adding Rational Numbers” (5-1) How do you add fractions with unlike denominators? To add fractions with unlike denominators (different-sized parts), change the fractions to equivalent fractions with the same denominators (same-sized parts). Then, add the numerators (number of parts). The denominators stay the same. w  Write equivalent fractions with  a common denominator (notice each fraction is multiplied by the other fraction’s denominator)  Add the numerators. 

ALGEBRA READINESS “Adding Rational Numbers” (5-1) To change a mixed number into its decimal form: 1. change the fraction to a decimal by dividing the numerator by the denominator and add the whole number to the decimal form of the fraction, or 2. make the mixed number an improper fraction and divide the numerator by the denominator Example: To add decimals, line up the decimals. This will ensure that you’re adding the same place values. Example: Add Line up the decimals 2. Place the numbers where they go in relation to the decimal 3. Add zero to blank spaces. How do you change a mixed number into a decimal? How do you add decimals?. _______._______ ______ 3.456___ ______ 3.456___ ______ 3.456___

ALGEBRA READINESS Find – = = Add the numerators – = = – Multiply to find a common denominator. Adding Rational Numbers LESSON 5-1 Additional Examples

ALGEBRA READINESS A recipe calls for cup of white flour and cup of wheat flour. How many cups of flour do you need? = = The LCD is 12. Write the fractions with the same denominator Add the numerators. + = = + You need, or 1, cups of flour Adding Rational Numbers LESSON 5-1 Additional Examples

ALGEBRA READINESS Find Write the mixed number as a decimal = Add (Make sure you line up the decimals first). = Adding Rational Numbers LESSON 5-1 Additional Examples

ALGEBRA READINESS Find each sum It snowed 2 in. on top of 4.5 in. of snow already on the ground. How deep is the snow now? – – in. Adding Rational Numbers LESSON 5-1 Lesson Quiz