Compare 9/21 and 72/6
1st number: 9/21, 2nd number: 12 0/6
9/21 is smaller than 72/6
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
9/21 = 9 × 2/21 × 2 = 18/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
72/6 = 72 × 7/6 × 7 = 504/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18/42 < 504/42 or 9/21 < 72/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21 and 72/6 9/42 and 72/6 9/21 and 72/12 27/21 and 72/6 9/63 and 72/6 9/21 and 72/18 45/21 and 72/6 9/21 and 72/30 63/21 and 72/6 9/21 and 72/42