Practice problem
What is the product of ab\frac{a}{b}ba and cd\frac{c}{d}dc?
a+cb+d\frac{a+c}{b+d}b+da+c
ad+cbbd\frac{ad+cb}{bd}bdad+cb
acbd\frac{ac}{bd}bdac
acb+d\frac{ac}{b+d}b+dac
Type a concept, like “slope” or “photosynthesis”.
