Which of the following is an equivalent fraction of 54?
If we multiply both the numerator and denominator of a fraction by the same number, we get an equivalent fraction.
On multiplying both the numerator and denominator of 54 by 2, we get
54×22=108
On multiplying both the numerator and denominator of 54 by 3, we get
54×33=1512
Thus, 1512 is an equivalent fraction of 54, whereas 45, 1215 and 104 are not.