Compare 20/84 and 70/30
1st number: 20/84, 2nd number: 2 10/30
20/84 is smaller than 70/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
70/30 = 70 × 14/30 × 14 = 980/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 100/420 < 980/420 or 20/84 < 70/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84 and 70/30 20/84 and 70/60 60/84 and 70/30 20/84 and 70/90