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- 1. ADDITION OF DISSIMILAR FRACTIONS
- 2. Find the least common denominator (LCD) of the following sets of fractions. 1. 1/3 , 1/5 2. 1/7 , 5/8 3. 2/3 , 1/6 4. ¾ , 1/2 5. 3/5 , 1/10
- 3. Study and Learn Sarah bought ½ kilogram of lanzones and ¼ kilogram of grapes for her grandmother. How many kilograms of fruits did she buy in all? What shall we do to solve the problem? We shall add.
- 4. What are we going to add? ½ and ¼ What kind of fractions are ½ and ¼? They are dissimilar fractions. Do you know how to add dissimilar fractions? Look closely as we solve the problem.
- 5. Through Illustration Change to similar fractions ½ + ¼ 2/4 + ¼ Add the numerators and use the same denominators 2/4 + ¼ =3/4
- 6. By computation Step 1 Find the least common denominator 1 2 4 1 4 4 = = Step 2 Find fractions equal to the given fraction 1 2 2 2 2 4 1 1 4 4 x = = Step 1 Add the numerators and use the common denominators. Reduce to lowest if possible. 3 4 =
- 7. Let’s have another example 3 3 5 15 15 9 45 9 5 45 45 + 3 3 9 27 27 5 45 5 9 45 45 43 45 The sum is 43 45 = x = = x = =
- 8. Solve and copy the correct answer on your paper. 1) 2) 3) 2/3 + ¼ = ( 8/12, 10/12, 11/12) 2/5 + ½ + ¼ = (1 3/20, 1 1/20, 1 5/20) 3/4 + 5/6 + ½ = (2 3/12, 2 2/12, 2 1/12)
- 9. In adding dissimilar fractions, follow these steps: ● Find the LCD of the given fractions. ● Change the fractions into similar fractions. ● Add. Always express the answer in lowest terms.

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