The fraction ( \frac{6}{21} ) can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 3. This results in ( \frac{6 \div 3}{21 \div 3} = \frac{2}{7} ). Therefore, ( \frac{6}{21} ) simplifies to ( \frac{2}{7} ).
2
3x7
18/21 = 6/7
no
well 0.6 is just like saying 6over 10
299393809 and get a calculator its not that hard
21:6::7:2
1.0000666666
There is no need to simplify this, it is only a sum. 21 + (10/2) - 18 = 8
6/21 = 2/7 simplified
5*root(21^2) = 5*21 = 105
16:21