Question

divide the sum of 18 by 5 and 7 by 15 by their difference​

Answer 1

Sum:

$\frac{18}{5} + \frac{7}{15} \\ \frac{3}{3} \times \frac{18}{5} + \frac{7}{15} \\ = \frac{54}{15} + \frac{7}{15} \\ = \frac{61}{15}$

Difference:

$\frac{18}{5} - \frac{7}{15} \\ \frac{3}{3} \times \frac{18}{5} - \frac{7}{15} \\ = \frac{54}{15} - \frac{7}{15} \\ = \frac{47}{15}$

Dividing Sum by Difference:

$\frac{61}{15} \div \frac{47}{15} \\ = \frac{61}{15} \times \frac{15}{47} \\ = \frac{61}{47}$