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Question
Add:
`5 1/5+2 1/7`
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Solution
`5 1/5+2 1/7`
= `(5 + 2) (1/5 + 1/7)`
= `7((1 xx 7)/(5 xx 7) + (1 xx 5)/(7 xx 5))`
= `7(7/35 + 5/35)`
= `7(12/35)`
= `7 12/35`
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______ 
= 
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Evaluate:
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