Question

Find(x+y)÷(x-y) if x=1/4,y=3/2

Answer 1

$= ( \frac{1}{4} + \frac{3}{2} ) \div ( \frac{1}{4} - \frac{3}{2} ) \\ = (\frac{1 + 6}{4} ) \div ( \frac{1 - 6}{4} ) \\ = \frac{7}{4} \div \frac{ - 5}{4 } \\ = \frac{7}{4} \times \frac{4}{ - 5} \\ = - \frac{7}{5}$