Compare 16/45 and 21/56
16/45 is smaller than 21/56
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
16/45 = 16 × 56/45 × 56 = 896/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
21/56 = 21 × 45/56 × 45 = 945/2520 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 896/2520 < 945/2520 or 16/45 < 21/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/45 and 21/56 16/45 and 42/56 16/90 and 21/56 48/45 and 21/56 16/45 and 63/56 80/45 and 21/56