Addition and Subtraction of Fractions Problems of the day: 2/9 + 4/9 = 1/3 + ¼ =

Like denominators 2/9 + 4/9 2 /9 + 4/9 = 2+4/ 9 Keep the denominators the same. Add the numerators. 6/9 = 6÷3/9÷3 = 2/3 Simplify.

Different Denominators 4/5 + 2/3 Find a common denominator 15 4/5= 12/15 Get the equivalent fractions 2/3 = 10/15 12/15 + 10/15 = 22/15 22/15 = 1 7/15

You try it. Add 3/5 + 1/5 7/8 + 3/8 1/3 + 1/8 ¾ + 1/6 4/5 + 1/3

Subtract fractions 2/5 – 1/5 = 1/5 Keep the denominator. Subtract the numerator. ¾ - 1/3 Get a common denominator 12 Get the equivalent fraction. ¾ = 9/12, 1/3 = 4/12 9/12- 4/12 = 5/12

Homework p. 194 1-33 Good luck with your homework.