Compare 25/45 and 40/12, Which fraction is greater?

Compare 25/45 and 40/12

1^st number: 25/45, 2^nd number: 3 4/12

25/45 is smaller than 40/12

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 45 × 4 = 180,
25/45 = 25 × 4/45 × 4 = 100/180
Likewise, for the 2nd fraction, since 12 × 15 = 180,
40/12 = 40 × 15/12 × 15 = 600/180
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
100/180 < 600/180 or 25/45 < 40/12

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