Question 268
Blake Scott estate = 100 %
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1/8  goes to the BOY SCOUTS
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2/9 goes to the cancer fund
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Logically 1/8 +  2/9  + X = 100%, so we must find X.  Therefore we must add 1/8 and 2/9  in order to do that we must find the LCD.
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In this case the LCD is 72.
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1/8 =  9/72
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2/9 = 16/72
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9/72 + 16/72 = 25/72
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Therefore 47/72 remains and will go to the Church.  Since there are no common factors between 47 and 72 this answer is in simplest form.