Compare 16/30 and 5/21
16/30 is greater than 5/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
16/30 = 16 × 7/30 × 7 = 112/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
5/21 = 5 × 10/21 × 10 = 50/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 112/210 > 50/210 or 16/30 > 5/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/30 and 5/21 16/30 and 10/21 16/60 and 5/21 16/30 and 5/42 48/30 and 5/21 16/30 and 15/21 16/90 and 5/21 16/30 and 5/63 80/30 and 5/21 16/30 and 25/21 16/30 and 35/21