Compare 1/21 and 35/30
1st number: 1/21, 2nd number: 1 5/30
1/21 is smaller than 35/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
1/21 = 1 × 10/21 × 10 = 10/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
35/30 = 35 × 7/30 × 7 = 245/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 10/210 < 245/210 or 1/21 < 35/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21 and 35/30 1/21 and 70/30 1/42 and 35/30 1/21 and 35/60 3/21 and 35/30 1/63 and 35/30 1/21 and 35/90 5/21 and 35/30 7/21 and 35/30