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### MEAP Preparation - Grade 7 Mathematics1.30 Subtraction in Rational Numbers - II

 Example: 4/9 - 3/10 = _____? In the above problem, the denominators are not same, therefore, first find the LCM of the denominators. LCM of 9 and 10 is 90. Therefore, (4x10)/90 - (3x9)/90 = (40-27)/90 = 13/90 Directions: Solve the following subtraction problems and write the answer without simplifying. Also write at least 10 examples of your own.
 Q 1: 23/7 - 81/2 = _____?Answer: Q 2: 81/10 - 31/10 = _____ ?Answer: Q 3: 15/6 - 17/8 = ______?Answer: Q 4: 251/3 - 201/21 = _____ ?Answer: Q 5: 386/4 - 281/6 = _____ ?Answer: Q 6: 521/12 -256/9 = _____?Answer: Q 7: 36/5 - 83/2 = _____ ?Answer: Q 8: 81/4 - 27/6 = _____?Answer: Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!