Compare 4/45 and 21/49
4/45 is smaller than 21/49
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,
4/45 = 4 × 49/45 × 49 = 196/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
21/49 = 21 × 45/49 × 45 = 945/2205 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 196/2205 < 945/2205 or 4/45 < 21/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45 and 21/49 4/45 and 42/49 4/90 and 21/49 4/45 and 21/98 12/45 and 21/49 4/45 and 63/49 20/45 and 21/49 28/45 and 21/49