Question

The answer for this problem

Answer 1

`\textbf{C}\quad(13)/(20)=(25)/(40) \qquad\textbf{FALSE}`

Explanation:

Each of the equations represents equivalent fractions except the one in choice C.

13/20 = 26/40, not 25/40.

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Comment on equal sign

IMO, one should never use an equal sign where things are not equal--unless there is a clear indication you understand they are not equal. The equal sign should be regarded as a sacred symbol, with very specific rules as to its meaning and use.