Compare 42/25 and 18/30
1st number: 1 17/25, 2nd number: 18/30
42/25 is greater than 18/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
42/25 = 42 × 6/25 × 6 = 252/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
18/30 = 18 × 5/30 × 5 = 90/150 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 252/150 > 90/150 or 42/25 > 18/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25 and 18/30 42/25 and 36/30 42/50 and 18/30 42/25 and 18/60 42/25 and 54/30 42/75 and 18/30 42/25 and 18/90 42/25 and 90/30