title: Sum of numerators of different fractions in Excel
body: <p>I have an array of cells that contain all numerators (A2:A500) and an array of cells that contain all denominators (B2:B500) think of them as a fraction. </p>
  
  <p>Is there a way to put them to the smallest common fraction and sum them up in one line? I can do it with the use of another column with multiplied numerators but I struggle to make it a one liner. How can something like this be achieved ?</p>