Compare 3/80 and 30/40
3/80 is smaller than 30/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
30/40 = 30 × 2/40 × 2 = 60/80 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 3/80 < 60/80 or 3/80 < 30/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80 and 30/40 3/80 and 60/40 3/80 and 30/80 9/80 and 30/40 3/80 and 90/40 15/80 and 30/40 21/80 and 30/40