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

D. 10x is the correct answer a and c are the common factor of 30 and 20 but it’s not the greatestonly b and d are the answers since 30x^3 -20x20x only have one x and 30 have 3 xso it can only be d.10xhope this will !