การคูณเศษส่วน
1. Change the values of the numerators a, c and denominators b, d by moving the sliders to get different fractions
2. Slide to visualise the multiplication of the two fractions
3. Click the checkbox to show the answers
Note:
1. Modified based on CEMTL resources;
2. There's problem in displaying LaTex text input on iPad; but simple texts are fine.