Compare 70/30 and 21/9
1st number: 2 10/30, 2nd number: 2 3/9
70/30 is equivalent to 21/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
70/30 = 70 × 3/30 × 3 = 210/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
21/9 = 21 × 10/9 × 10 = 210/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/90 = 210/90 or 70/30 = 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30 and 42/9 70/60 and 21/9 70/30 and 21/18 70/30 and 63/9 70/90 and 21/9 70/30 and 21/27 70/30 and 21/45 70/30 and 21/63