Write 260/400 as a percent.

A 26%
B 65%
C 15.3%
D 60%

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

260/400 = 0.65

Convert 0.65 to a percent by multiplying by 100:

0.65 * 100 = 65%

Therefore, the fraction 260/400 is equal to 65%.

The correct answer is B) 65%.