Compare 21/12 and 40/50
1st number: 1 9/12, 2nd number: 40/50
21/12 is greater than 40/50
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Likewise, for the 2nd fraction, since 50 × 6 = 300,
40/50 = 40 × 6/50 × 6 = 240/300 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 525/300 > 240/300 or 21/12 > 40/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/12 and 40/50 21/12 and 80/50 21/24 and 40/50 63/12 and 40/50 21/36 and 40/50 21/60 and 40/50 21/84 and 40/50