2/7 x 21 = 6
Expressed as a proper fraction in its simplest form, 6/63 is equal to 2/21 or two twenty-firsts.
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2/21
2/9
21 over 42, as a fraction, is 1/2. As a division problem, it's .5
21 over 8
2.1 = 2 + 1/10 = 2 1/10 It can also be written as the improper fraction 21/10