Compare 12/2 and 21/42
1st number: 6 0/2, 2nd number: 21/42
12/2 is greater than 21/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
12/2 = 12 × 21/2 × 21 = 252/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 252/42 > 21/42 or 12/2 > 21/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/2 and 21/42 12/4 and 21/42 12/2 and 21/84 36/2 and 21/42 12/2 and 63/42 12/6 and 21/42 60/2 and 21/42 12/10 and 21/42 84/2 and 21/42 12/14 and 21/42