Add and Subtract Fractions Literacy 1 4 Illustrate and explain explicitly why = 2 8 Skill 1 1 2 1) 5 + 5 = 1 1 2) 2 + 2 = 3 2 3) 7 + 7 = 2 4 4) 9 + 9 = 3 1 5) 4 − 4 = 4 5 6) 8 + 8 = 7 5 7) 8 − 8 = 6 4 8) 11 − 11 = 7 7 9) 9 + 9 = 4 5 10) 3 + 3 = Fractions with a common denominator 2 5 5) Find the perimeter of the rectangle. 2) 4 7 −7+7= 3) 3 25 3) 4) 5) Stretch 1 4) + + = 2) 3 24 3 5 1) 1) 1 54 + 1 35 = 1 1 + = 2 4 2 1 + = 3 6 3 2 + = 10 5 2 1 + = 5 4 3 2 + = 4 3 − 4 𝑐𝑚 9 Skill 2 1 2 1+2 3 + = = 4 4 4 4 = + Example 2 5 1 5 = 2 𝑐𝑚 9 Fractions without a common denominator B – Box it I – Identify multiplying numbers T – Times whole boxed fractions Example 3 2 21 8 21 − 8 14 1 − = − = = = 4 7 28 28 28 28 2 x7 4 3 − = 5 10 3 1 7) 4 − 2 = 5 2 8) 6 − 5 = 4 3 9) 5 − 7 = 3 4 10) 4 − 9 = 6) Memory x4 Stretch 2 1) 1 2 2 3 + 5 + 10 = 1 1 2) 2 2 + 3 4 = 3) 4 6 7 2 + − = 9 3 www.missbsresources.com