What should be added to (10 /20 +4/8 -19/18)to get 1 ?
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Answer:
Let number added be x
(10/20+4/8-19/18)+x=1
(1/2+1/2-19/18)+x=1
(9+9-19)/18+x=1
-1/18+x=1
x=1-(-1/18)
x=1+1/18
x=(18+1)18
x=19/18
The number added =19/18
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