If daniel is 2 1/2 years old and chris is 2 years old how old is daniel in 15 years and chris in 14 years old

Add Daniel's current age and 15

Then add Chris' current age and 14
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Daniel: 



Write mixed number as an improper fractions and add 1 as a denominator for 15.



Both denominators should be of same number so, multiply  by 2



Write  as a mixed number which gives us:



Daniel's Age in 15 years would be 
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Chris:

2 + 14 = 16

Chris' age in 14 years would be 16