Compare 18/5 and 21/56
1st number: 3 3/5, 2nd number: 21/56
18/5 is greater than 21/56
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
18/5 = 18 × 56/5 × 56 = 1008/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1008/280 > 105/280 or 18/5 > 21/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/5 and 21/56 18/5 and 42/56 18/10 and 21/56 54/5 and 21/56 18/5 and 63/56 18/15 and 21/56 90/5 and 21/56 18/25 and 21/56 18/35 and 21/56