Compare 80/12 and 45/40
1st number: 6 8/12, 2nd number: 1 5/40
80/12 is greater than 45/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
80/12 = 80 × 10/12 × 10 = 800/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 800/120 > 135/120 or 80/12 > 45/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12 and 90/40 80/24 and 45/40 80/12 and 45/80 80/36 and 45/40 80/60 and 45/40 80/84 and 45/40