Compare 18/28 and 54/42
1st number: 18/28, 2nd number: 1 12/42
18/28 is smaller than 54/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
18/28 = 18 × 3/28 × 3 = 54/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
54/42 = 54 × 2/42 × 2 = 108/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 54/84 < 108/84 or 18/28 < 54/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28 and 54/42 18/56 and 54/42 18/28 and 54/84 54/28 and 54/42 18/84 and 54/42 90/28 and 54/42