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Please help me 10 points

Please help me 10 points-example-1
User Neni
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1 Answer

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7(2)/(9)-3(5)/(6)=7(2\cdot2)/(9\cdot2)-3(5\cdot3)/(6\cdot3)=7(4)/(18)-3(15)/(18)\\\\=6(22)/(18)-3(15)/(18)=3(7)/(18)
User Sheri Trager
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