What is 7/10 expressed as a percentage?

To convert a fraction like seven-tenths (7/10) into a percentage, you multiply the fraction by 100. The calculation is as follows:

1. Take the fraction: 7/10.

2. Multiply by 100:

(7/10) × 100 = 7 × 10 = 70.

Therefore, seven-tenths expressed as a percentage is 70%. This demonstrates the relationship between fractions and percentages, where 100% equates to a whole. In this case, because 7 is out of the total of 10, 70% accurately represents this part of the whole. Other options provide percentages that do not correspond to the actual fraction value of 7/10 when calculated.