Compare 4/56 and 21/84
4/56 is smaller than 21/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
4/56 = 4 × 3/56 × 3 = 12/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
21/84 = 21 × 2/84 × 2 = 42/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 12/168 < 42/168 or 4/56 < 21/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/56 and 21/84 4/56 and 42/84 12/56 and 21/84 4/56 and 63/84 20/56 and 21/84 28/56 and 21/84