Compare 81/40 and 9/72
1st number: 2 1/40, 2nd number: 9/72
81/40 is greater than 9/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
81/40 = 81 × 9/40 × 9 = 729/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 729/360 > 45/360 or 81/40 > 9/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/40 and 18/72 81/80 and 9/72 81/40 and 27/72 81/40 and 45/72 81/40 and 63/72