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I don't remember how to do this

I don't remember how to do this-example-1
User Lehermj
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1 Answer

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B. Fractions have to have the same denominator so
(9)/(10) - (2)/(5) = (9)/(10) - (4)/(10) which =
(5)/(10) then you simplfy it to
(1)/(2) so it would be B
User Babak Bandpey
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