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### MEAP Preparation - Grade 7 Mathematics1.86 Addition and Subtraction of Mixed Fractions with Unlike Denominators

 Method: Add or subtract the whole numbers Add the fractional part Example: 1 1/2 + 3 3/4 Add the whole numbers 1 and 3 which gives 4. Add the fractional part, 1/2 + 3/4 LCM of 2 and 4 is 4. 1/2 x 4/4 = 2/4 3/4 x 4/4 = 3/4 Add the fractions 2/4 + 3/4 = 5/4 Answer: 4 5/4 Example: 7 1/2 - 3 1/4 Subtract the whole numbers (7-3) which gives 4. Subtract the fractional part. 1/2 - 3/4 LCM of 2 and 4 is 4. 1/2 x 4/4 = 2/4 1/4 x 4/4 = 1/4 (2-1)/4 = 1/4 Answer: 4 1/4 Directions: Add or subtract the following mixed fractions. Also write at least ten examples of your own.
 Q 1: 1 2/3 + 1 2/4 =3 7/61 7/62 7/6 Q 2: 8 2/5 + 7 1/3 =15 3/515 3/1015 11/15 Q 3: 3 1/8 + 4 2/4 =7 3/81 3/47 5/8 Q 4: 2 3/9 + 1 1/3 =3 2/33 4/91 4/9 Q 5: 7 3/7 - 2 2/3 =5 1/214 16/215 1/7 Q 6: 9 5/7 + 6 1/2 =15 17/1415 6/716 3/14 Q 7: 10 3/4 - 5 3/5 =5 3/205 0/55 6/20 Q 8: 6/12 + 1/4 =2/47/123/4 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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