Compare 81/75 and 80/30
1st number: 1 6/75, 2nd number: 2 20/30
81/75 is smaller than 80/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
81/75 = 81 × 2/75 × 2 = 162/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
80/30 = 80 × 5/30 × 5 = 400/150 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 162/150 < 400/150 or 81/75 < 80/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/75 and 80/60 81/75 and 80/90