To determine if 4/9 makes the equations true, you have to solve the multiplications. If the result is the same as the given one, then 4/9 makes the equation true.
First equation:


To multiply a fraction by a whole number, you have to multiply the whole number by the numerator and then divide the result by the denominator:

The result is 28, which means that 4/9 makes the equation true. The answer is YES.
Second equation:

Multiply 25 by 4/9

The result is different from 14, which means that 4/9 doesn't make the equation true. The answer is NO.