Compare
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Estimate the sum of
The sum should be greater than 2, because
What do you need to do to
find the exact sum?
Write the fractions with a common denominator.
What should the common denominator be? Explain.
Possible answer: 4, because 4 is a multiple of 2.
How do you rewrite
that it has a common denominator of 4? Explain.
After rewriting
You estimated that the answer would be greater than 2. Is the answer greater than 2? How do you know?
Yes, because 2 =
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