Compare 21/45 and 3/49
21/45 is greater than 3/49
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 49 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 45 × 49 = 2205,
21/45 = 21 × 49/45 × 49 = 1029/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
3/49 = 3 × 45/49 × 45 = 135/2205 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1029/2205 > 135/2205 or 21/45 > 3/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/45 and 3/49 21/45 and 6/49 21/90 and 3/49 21/45 and 3/98 63/45 and 3/49 21/45 and 9/49 21/45 and 15/49 21/45 and 21/49