How do you get these problems??
1 3/4 + 4/5 and 3 1/8 - 1 1/2

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1. When you add and subtract fractions, you need to use their common denominators.

1 3/4 + 4/5 = 1 15/20 + 16/20 = 1 31/20 = 2 11/20

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Ms. Sue
2. Then does 3 1/8 - 1 1/2 = 2 3/8??

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3. No. Sorry.

3 1/8 - 1 4/8 = 2 9/8 - 1 4/8 = ?

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Ms. Sue
4. Ohhhhhh ok now i understand it you have to borrow from the whole number right?

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5. Right! :-)

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Ms. Sue
6. Ohh ok thank you so much for your help =]

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7. You're very welcome. :-)

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Ms. Sue

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