Do Now 3/8/11 Take out HW from last night. Copy HW in your planner. Text p. 228, #10-28 evens, 38-44 evens Copy HW in your planner. Text p. 234, #12-30 evens, #46-50 evens Quiz sections 5.2 - 5.3 Thursday In your journal, find the least common multiple for the numbers below. 12, 16 12, 14 6, 10

Homework Text p. 228, #10-28 evens, 38-44 evens 10) 1 2/5 12) -1 1/9 14) 1/3 16) -5/11 18) -1 1/2 20) 14 1/5 22) 5 3/11 24) -5 1/4 26) -1/7 28) 4 1/3 cups 38) 1 5/9 40) -1 42) -2 3/31 44) 2 ft, 8 1/2 in

Objective SWBAT add and subtract unlike fractions.

Section 5.2 “Adding and Subtracting Like Fractions” Adding Fractions with Common Denominators To ADD fractions with common denominators, add their numerators together. Add the numerators

Section 5.2 “Adding and Subtracting Like Fractions” Subtracting Fractions with Common Denominators To SUBTRACT fractions with common denominators, subtract their numerators. Subtract the numerators

Fractions with Different Denominators Section 5.3 “Adding and Subtracting Unlike Fractions” Fractions with Different Denominators To ADD or SUBTRACT fractions with different denominators follow these steps: 1. Rewrite the fractions using a common denominator. 2. Add or subtract the numerators. What is the common denominator? 5: 5, 10, 15, 20, 25, 30, 35, 40 7: 7, 14, 21, 28, 35, 42

Try It Out!! Solve Don’t forget your integer rules. “Opp-Opp” -7 + (-3) = -10

Try It Out!! Solve Don’t forget your integer rules. “Opp-Opp” -16 + (-2) = -18

“Adding and Subtracting Mixed Numbers” Mixed Numbers with Different Denominators To ADD & SUBTRACT mixed numbers do the following: 1. Write the fractions as improper fractions 2. Write fractions using the LCD. 3. Add or subtract the numerators 4. Simplify if necessary

Try It Out Improper fractions Write fractions using LCD. Simplify Don’t forget your integer rules. “Opp-Opp” 34 + (-11) = 23 Simplify

Try It Out!! Improper fractions Don’t forget your integer rules. “Opp-Opp” -123 + (-94) = -217 Write fractions using LCD. Simplify

Homework Text p. 234, #12-30 evens, #46-50 evens

Homework Punchline worksheets #72 & #73 “Why Does the President Put Vegetables in His Blender?” HE IS HOPING FOR WHIRLED PEAS “How Could Goldilocks and The Big Bad Wolf Be in the Same House?” IT WAS A TWO STORY HOUSE

Homework 2) 26 / 63 2) -4/5 2) -86 / 1 4) -17 / 36 4) 1 3/43 Practice worksheet 5.1 B evens Practice worksheet 5.2 B evens Practice worksheet 5.3 B evens 2) 26 / 63 4) -17 / 36 6) -1 23/60 8) 19 / 35 10) 1 2/15 12) -8/15 14) 1 19/45 16) 23/40 18) -2 31/50 20) -10/33 22) -5 41/48 24) 2 23/48 26) 43x / 24 28) -36x / 35 30) 11/35 2) -4/5 4) 1 3/43 6) 1/25 8) -21/40 10) -1 1/7 12) -11 5/9 14) 4 3/5 16) -5 5/8 18) 5x / 7 20) –x 22) 1 / 12x 24) 3 / x 2) -86 / 1 4) -109 / 12 6) -555 / 1 8) 67 / 14 10) -0.27 12) 8.15 14) -7.25 16) -2.225 18) 1.5 20) -10.194 22) 1/25 24) 14 1/200 26) 16/99 28) 3 23/30