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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: 9 1/4 + 2 1/2 =12 3/411 1/311 3/4 Q 2: 5 1/2 - 3 2/5 =2 5/102 1/52 1/10 Q 3: 1 2/3 + 1 2/4 =3 7/62 7/61 7/6 Q 4: 10 3/4 - 5 3/5 =5 3/205 0/55 6/20 Q 5: 7 3/7 - 2 2/3 =4 16/215 1/75 1/21 Q 6: 9 5/7 + 6 1/2 =15 17/1415 6/716 3/14 Q 7: 6/12 + 1/4 =3/42/47/12 Q 8: 8 2/5 + 7 1/3 =15 3/515 3/1015 11/15 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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