Adding fractions with different denominators

LI. To add fractions with different denominators. This week for maths we had to add fractions with different denominators. If you know all your multiplication facts it would be a lot easier and help you a lot. My equation is- 4/7 + 8/12, and my answer simplified is- 26/21. We had to create a DLO to show how to do this. I used a google presentation to make the DLO. I stumbled a bit the first time and now I understand more now. I realized that I did the wrong thing and then I asked the teacher and now I understand.