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Question
Simplify:
`2 1/2-3 1/2xx1 3/4+2 1/2`
Solution
`2 1/2-3 1/2xx1 3/4+2 1/2`
= `5/2-7/2xx7/4+5/2`
= `5/2-49/8+5/2=5/2+5/2-49/8`
= `(20+20-49)/8=-9/8=-1 1/8`
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