When dividing 7/8 by 2/3 to adjust a sample volume, what is the correct result? 21/16 14/24 3/4 7/16

To divide fractions, you can multiply the first fraction by the reciprocal of the second fraction. The reciprocal of a fraction is obtained by swapping the numerator and denominator.<br /><br />In this case, we have:<br />$\frac{7}{8} \div \frac{2}{3} = \frac{7}{8} \times \frac{3}{2} = \frac{21}{16}$<br /><br />Therefore, the correct answer is $\frac{21}{16}$.