At the Castroville Zoo's bug exhibit, Dana watches a millipede crawl for 2 1/5 minutes, stay still for a while, and then crawl for 10 minutes more. How much total time did Dana spend watching the millipede crawl?Write your answer as a fraction or as a whole or mixed number.
Question
At the Castroville Zoo's bug exhibit, Dana watches a millipede crawl for 2 1/5 minutes, stay still for a while, and then crawl for 10 minutes more. How much total time did Dana spend watching the millipede crawl?Write your answer as a fraction or as a whole or mixed number.
Solution
Dana watched the millipede crawl for 2 1/5 minutes and then for an additional 10 minutes.
First, convert the mixed number 2 1/5 to an improper fraction. The denominator is 5, and 5 times 2 is 10. Add the numerator 1 to get 11. So, 2 1/5 is equal to 11/5 minutes.
Then, add this to the 10 minutes that Dana watched the millipede crawl again. But first, convert 10 minutes to a fraction with the same denominator of 5. 10 minutes is equal to 50/5.
Finally, add the two fractions together:
11/5 + 50/5 = 61/5
However, 61/5 can be simplified to a mixed number. 5 goes into 61 twelve times with a remainder of 1. So, 61/5 is equal to 12 1/5.
Therefore, Dana spent a total of 12 1/5 minutes watching the millipede crawl.
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