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Suppose that a student performed the following computation: 7 / (2 × 53) + 3 / (4 × 52) = 7 / 1,000 + 3 / 100 = 7 / 1,000 + 30 / 1,000 = 37 / 1,000 Complete the following for this assignment: •Explain the mistake in the computation. •Discuss the best strategy for adding and subtracting fractions. In particular, explain why it is helpful to get the least common denominator and not just any common denominator. •Illustrate your discussion by computing the following: 2 / 45 + 7 / 75

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Excellent resource! Really helped me get the gist of things.

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