Which of the following is equivalent to Start Fraction lower a plus lower f over lower a minus lower d End Fraction equals Start Fraction lower b over lower a End Fraction?

Answer 1

The equation can be represented as:

$\frac{a+f}{a-d} = \frac{b}{a}$

Taking the reciprocal of both sides gives:

$\frac{a-d}{a+f} = \frac{a}{b}$

Flipping the fraction on the right side gives:

$\frac{a-d}{a+f} = \frac{b}{a} = \frac{a}{b}$

So, the equivalent expression is:

$\frac{a-d}{a+f} = \frac{a}{b}$