Compare 40/56 and 20/45
40/56 is greater than 20/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
40/56 = 40 × 45/56 × 45 = 1800/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
20/45 = 20 × 56/45 × 56 = 1120/2520 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1800/2520 > 1120/2520 or 40/56 > 20/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56 and 20/45 40/56 and 40/45 40/56 and 20/90 40/56 and 60/45