Last week we learned how to add fractions with unlike denominators. Me and ngoldenberg23’s question is 4/5 + 6/15.
First, you have to find the least common multiple. That will be your denominator for adding.Then you have to find the denominator. Our denominator is 15 because 3×5 is 15 and it is also the denominator of 6/15 which is one of our numbers. Finally, you add 6/15 + 12/15 which is 18/15 so that is your answer. 
15
Good job boys! Learning new things and how to work together is wonderful!
Mama
This is a public blog! You are Marina not mama!
Thank you, Gregory
i think you explained it very well! and I checked the final answer………AND IT IS RIGHT! so i would say that you were spot on!
I like the way you did it with a photo, but next time I would give more details on how you got to 15 as your denominator instead of just saying 3 X 5.
I think you did a wonderful job explaining how to add fractions with unlike denominators. There are a few things I am wondering..
– What is the denominator in a fraction? What is the least common multiple? How do you find the LCM?
– I see that your answer is 18/15, but I am wondering what is 18/15 turned into a mixed number? How do you do that?