Given the decimal number 2.1. Convert this decimal number to fraction.

The decimal number, 2.1 contains 1 decimal place. Hence, we can remove the decimal point by multiplying 2.1 with 10 . This gives 21.

After multiplying 2.1 with 10, we must divide the result, 21 with 10. This is because we need to keep this term equivalent to 2.1. Hence, we have:

Notice that this fraction is an improper fraction. It is better to convert this fraction into a mixed fraction so that it will looks neater.

Finally, we have the mixed fraction, 2 ^{1}/_{10}

Clearly, the answer is B.

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