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Lesson 5: Adding and subtracting mixed numbers

# Mixed number addition with regrouping

Sal practices adding mixed numbers with common (like) denominators. Items require regrouping.

## Want to join the conversation?

• Is there an easier way to add?
The bottom numbers must be the same!
♫ "Change the bottom using multiply or divide,
But the same to the top must be applied,
♫ "And don't forget to simplify,
Before its time to say good bye"
• I think that this really helped me and I'm a math matision
• Yes, I can be like Archimedes and Charles Babbage.
• I got this same exact question on the unit test and when I put in the right answer it said it was wrong. What did I do wrong. I just copied the answer you gave in the video.
• why does he do 8+5/5+ 1/5=9 1/5 and change the 5/5 to 1/5.
• What he did was rewrite `5/5` as `1` and then add it to `8`:
``8 + 5/5 + 1/58 + 1 + 1/5(8 + 1) + 1/59 + 1/59 1/5``
• I try to write italics i tried copy and paste it still wrote it straightly is there a trick to write it the correct way?
• You need to add these things ---> _ _
And you need to add one before and after the word you want to be like that.
• it is a little confusing
• kind of.