Compare 15/84 and 3/30
15/84 is greater than 3/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
3/30 = 3 × 14/30 × 14 = 42/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/420 > 42/420 or 15/84 > 3/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84 and 3/30 15/84 and 6/30 15/84 and 3/60 45/84 and 3/30 15/84 and 9/30 15/84 and 3/90 75/84 and 3/30 15/84 and 15/30 15/84 and 21/30