Compare 30/40 and 2/12
30/40 is greater than 2/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
2/12 = 2 × 10/12 × 10 = 20/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/120 > 20/120 or 30/40 > 2/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40 and 2/12 30/40 and 4/12 30/80 and 2/12 30/40 and 2/24 90/40 and 2/12 30/40 and 6/12 30/40 and 2/36 30/40 and 10/12 30/40 and 2/60 30/40 and 14/12 30/40 and 2/84