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### MEAP Preparation - Grade 5 Mathematics1.17 Adding/Subtracting Fractions with Unlike Denominators

 Method: To add or subtract fractions with different/unlike denominators, you must first make the denominators common. Denominators are made common by finding the LCM. Performthe required operation on like fractions so obtained. Example: 1/2 - 1/6 Find LCM of 2 and 6 which is 6. Multiply and divide each fraction by the LCM. 1/2 * 6/6 = 3/6 1/6 * 6/6 = 1/6 3/6 - 1/6 = 2/6 Answer: 2/6 Example: 1/2 + 1/5 Find LCM of 2 and 5 which is 10. Multiply and divide each fraction by the LCM. 1/2 * 10/10 = 5/10 1/5 * 10/10 = 2/10 5/10 + 2/10 = 7/10 Answer: 7/10 Directions: Add/subtract the following fractions. Also write at least 5 examples of your own.
 Q 1: 7/8 - 1/4 =5/81/22/37/8 Q 2: 7/12 - 2/6 =1/41/52/121/3 Q 3: 5/8 - 1/2 =2/81/51/81/4 Q 4: 1/2 - 1/3 =3/61/61/32/6 Q 5: 8/9 - 2/3=2/96/126/9 Q 6: 2/3 - 1/2 =1/31/21/61/5 Question 7: This question is available to subscribers only! Question 8: This question is available to subscribers only!

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