If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content
Current time:0:00Total duration:2:29

Video transcript

James and Carly caught a lizard in their backyard its body is 17 eight inches long and its tail is ten eight inches long what is the length of the lizard's body and tail together so good thing we have the the lizard obediently standing next to our our measuring stick or our ruler or whatever this happens to be and we have it marked off in inches and not only that we have it marked off in eighths of inches notice this is an inch and we have one two three four five six seven eight sections of that actual inch so let's see 17 8 inches long this is going to be 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 this right over here is 17 8 17 8 which you might notice is also equal to 2 and 1/8 8 goes into 17 2 times with a remainder of 1 but we won't talk about that just yet but we see that's the length of that's the length of the lizard's body 17 eighths I just counted off 17 of these eighths right over here 17 eighths and then they say that the tail is 10 8 inches long the tail is 10 eighths Lynch is long so it's another 1 2 3 4 5 6 7 8 9 10 so this distance right over here I just count it off 10 eighths so that's another 10 8 inches long and it gets this all the way to the end of the lizard's tail and they say what is the length of the lizard's body and tail together well that's going to be the length of the body plus the length of the tail so you have 17 8 plus 10 eighths well that's going to get you to 17 plus 10 8 17 plus 10 8 which is equal to which is equal to twenty seven twenty seven over eight and so this mark right over here is 27 over eight and if you wanted to write this as a mixed number you could just say well eight goes into 27 three and you have a remainder of 3 so this is equal to 3 and 3/8 and you see that on the ruler right over here it's equal to 1 2 3 and then we have another 1 2 3 8 these two things are equivalent