Compare 20/42 and 48/54
20/42 is smaller than 48/54
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
20/42 = 20 × 9/42 × 9 = 180/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
48/54 = 48 × 7/54 × 7 = 336/378 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/378 < 336/378 or 20/42 < 48/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42 and 48/54 20/42 and 96/54 20/84 and 48/54 60/42 and 48/54