# Lesson 46: Adding and Subtracting Rational Expressions

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Aralin tungkol sa pagdagdag at pagbawas ng mga rational expressions. Para makapagdagdag at makapagbawas ng mga rational expressions, kailangan lang gamitin ang cross-multiplication at ang mga natatanging mathematical operations na dapat gamitin.

0:30 2/x + 3/y

0:56 5y/x -- 2z/y

1:30 2/x + 3/(x+2)

3:22 2/3x -- 9/3x

3:47 2x/(2x+1) + 5x/(2x+1)

4:12 12x^2/x(y+3) -- 4x^2/x(y+3)

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