Compare 10/30 and 12/15
10/30 is smaller than 12/15
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,
10/30 = 10 × 1/30 × 1 = 10/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
12/15 = 12 × 2/15 × 2 = 24/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 10/30 < 24/30 or 10/30 < 12/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30 and 12/15 10/30 and 24/15 10/60 and 12/15 10/30 and 12/30 10/30 and 36/15 10/90 and 12/15 10/30 and 12/45 50/30 and 12/15 10/30 and 60/15 10/30 and 12/75 70/30 and 12/15 10/30 and 84/15