Compare 10/9 and 21/42
1st number: 1 1/9, 2nd number: 21/42
10/9 is greater than 21/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
10/9 = 10 × 14/9 × 14 = 140/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
21/42 = 21 × 3/42 × 3 = 63/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 140/126 > 63/126 or 10/9 > 21/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/9 and 21/42 10/18 and 21/42 10/9 and 21/84 30/9 and 21/42 10/9 and 63/42 10/27 and 21/42 50/9 and 21/42 10/45 and 21/42 70/9 and 21/42 10/63 and 21/42