Compare 20/56 and 45/84
20/56 is smaller than 45/84
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,
20/56 = 20 × 3/56 × 3 = 60/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
45/84 = 45 × 2/84 × 2 = 90/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 60/168 < 90/168 or 20/56 < 45/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56 and 45/84 20/56 and 90/84 60/56 and 45/84