Compare 72/80 and 7/18
72/80 is greater than 7/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
72/80 = 72 × 9/80 × 9 = 648/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
7/18 = 7 × 40/18 × 40 = 280/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 648/720 > 280/720 or 72/80 > 7/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80 and 14/18 72/80 and 7/36 72/80 and 21/18 72/80 and 7/54 72/80 and 35/18 72/80 and 7/90 72/80 and 49/18