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Addition and Subtraction of FractionsProblems 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 Denominators4/5 + 2/3 Find a common denominator 15 4/5= 12/15 Get the equivalent fractions 2/3 = 10/15 12/ /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 Good luck with your homework.
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