Compare 10/21 and 4/30
1021 is greater than 430
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,
1021 = 10 × 1021 × 10 = 100210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
430 = 4 × 730 × 7 = 28210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 100210 > 28210 or 1021 > 430
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21 and 4/30 10/21 and 8/30 10/42 and 4/30 10/21 and 4/60 30/21 and 4/30 10/21 and 12/30 10/63 and 4/30 10/21 and 4/90 50/21 and 4/30 10/21 and 20/30 70/21 and 4/30 10/21 and 28/30