1. Change the values of the numerators a, c and denominators b, d by moving the sliders to get different fractions[br][br]2. Slide to visualise the multiplication of the two fractions[br][br]3. Click the checkbox to show the answers

Note: [br][br]1. Modified based on CEMTL resources;[br][br]2. There's problem in displaying LaTex text input on iPad; but simple texts are fine.