Compare 1/2 and 20/30
1/2 is smaller than 20/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
1/2 = 1 × 15/2 × 15 = 15/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
20/30 = 20 × 1/30 × 1 = 20/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/30 < 20/30 or 1/2 < 20/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2 and 40/30 1/4 and 20/30 1/2 and 20/60 3/2 and 20/30 1/2 and 60/30 1/6 and 20/30 1/2 and 20/90 5/2 and 20/30 1/10 and 20/30 7/2 and 20/30 1/14 and 20/30