Compare 12/30 and 5/15
12/30 is greater than 5/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
12/30 = 12 × 1/30 × 1 = 12/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
5/15 = 5 × 2/15 × 2 = 10/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 12/30 > 10/30 or 12/30 > 5/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30 and 5/15 12/30 and 10/15 12/60 and 5/15 12/30 and 5/30 36/30 and 5/15 12/90 and 5/15 12/30 and 5/45 60/30 and 5/15 12/30 and 25/15 12/30 and 5/75 84/30 and 5/15 12/30 and 35/15