Big Ideas Math: Modeling Real Life, Grade 7
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4. Percents of Increase and Decrease
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Exercise 5 Page 257

To add or subtract fractions, they need to have the same denominator.

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Practice makes perfect

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with the same denominator. Let's then find their sum!

4/7 + (- 6/7)
4/7 - 6/7
4-6/7
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