Answer :

You have to divide 2 and 1/10 by 1/3 and it would equal 21/10 divided by 1/3 then you multiply the two numbers and you get 63/10 then you divide the two numbers and your final answer would be 6 and 3/10
1/3 of an our is 20 minutes, so to find a whole hour you need to multiply 2 1/10 by 3

2×3=6
1×3=3
10×3=30

your new fraction is 6 3/30, now simplify 3 and 30 by 3

3÷3=1
30÷3=10

your answer is now 6 3/10 so your answer is D.

hope this helped!

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